CVE-2025-9086
highpriority · track · 1EPSS 0.015 · 73 %ileDEEUFRNLRUUSEPSS · scored 2026-10-22
1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with only a slash as path (`path="/"`). Since this site is not secure, the cookie *should* be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedcurl-0:7.76.1-35.el9_7.3.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedcurl-minimal-0:7.76.1-35.el9_7.3.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-0:7.76.1-35.el9_7.3.i686 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-0:7.76.1-35.el9_7.3.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-devel-0:7.76.1-35.el9_7.3.i686 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-devel-0:7.76.1-35.el9_7.3.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-minimal-0:7.76.1-35.el9_7.3.i686 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-minimal-0:7.76.1-35.el9_7.3.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedcurl-0:8.12.1-2.el10_1.2.x86_64 as component of SUSE Liberty Linux 10suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-0:8.12.1-2.el10_1.2.x86_64 as component of SUSE Liberty Linux 10suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-devel-0:8.12.1-2.el10_1.2.x86_64 as component of SUSE Liberty Linux 10suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedlibcurl-minimal-0:8.12.1-2.el10_1.2.x86_64 as component of SUSE Liberty Linux 10suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- FixedRUGGEDCOM RST2428P (6GK6242-6PA00)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familysiemens_psirt
See Section Additional Information.
- FixedSCALANCE XCH328 (6GK5328-4TS01-2EC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM324 (6GK5324-8TS01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM328 (6GK5328-4TS01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM332 (6GK5332-0GA01-2AC2)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-3AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-2AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-4AR3)siemens_psirt
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedRUGGEDCOM RST2428P (6GK6242-6PA00)siemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/110002573/ - FixedRUGGEDCOM RST2428P (6GK6242-6PA00)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familycisa_csaf_ot
See Section Additional Information.
- FixedSCALANCE XCH328 (6GK5328-4TS01-2EC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM324 (6GK5324-8TS01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM328 (6GK5328-4TS01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XCM332 (6GK5332-0GA01-2AC2)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-3AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-2AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedSCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) (6GK5334-5TS01-4AR3)cisa_csaf_ot
Update to V3.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109997626/ - FixedRUGGEDCOM RST2428P (6GK6242-6PA00)cisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/110002573/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (183)
Products and version ranges known to be affected.
advisories (27)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0330Kwetsbaarheden verholpen in Oracle Communications productenNL2025-10-23csaf · ncsc_nlNL
Oracle heeft meerdere kwetsbaarheden verholpen in zijn Communications producten, waaronder de Unified Assurance en Cloud Native Core.
- NCSC-2025-0396Kwetsbaarheden verholpen in Apple macOSNL2025-12-15csaf · ncsc_nlNL
Apple heeft kwetsbaarheden verholpen in macOS Sonoma (14.8.3), macOS Sequoia (15.7.3) en macOS Tahoe (26.2).
- NCSC-2025-0397Kwetsbaarheden verholpen in Apple iOS en iPadOSNL2025-12-15csaf · ncsc_nlNL
Apple heeft kwetsbaarheden verholpen in iOS en iPadOS (versies 18.7.3 en 26.2)
- NCSC-2026-0020Kwetsbaarheden verholpen in Oracle CommerceNL2026-01-21csaf · ncsc_nlNL
Oracle heeft kwetsbaarheden verholpen in verschillende producten, waaronder Oracle WebLogic Server en Oracle Commerce producten
- NCSC-2026-0023Kwetsbaarheden verholpen in Oracle PeopleSoftNL2026-01-21csaf · ncsc_nlNL
Oracle heeft kwetsbaarheden verholpen in Oracle PeopleSoft.
- NCSC-2026-0032Kwetsbaarheden verholpen in Oracle MySQLNL2026-01-21csaf · ncsc_nlNL
Oracle heeft kwetsbaarheden verholpen in diverse Oracle MySQL componenten.
- RHSA-2026:1350security update for curl2026-01-27csaf · suse_csafDE
security update for curl
- RHSA-2026:1825security update for curl2026-02-03csaf · suse_csafDE
security update for curl
- SSA-089022SSA-089022: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.32026-01-28csaf · siemens_psirtDE
SINEC OS before V3.3 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- SSA-253495SSA-253495: Multiple Vulnerabilities in SINEC OS before V4.02026-06-02csaf · siemens_psirtDE
SINEC OS before V4.0 contains multiple vulnerabilities. Siemens has released a new version for RUGGEDCOM RST2428P and recommends to update to the latest version.
- WID-SEC-W-2025-2023cURL: Mehrere Schwachstellen ermöglichen Manipulation von DateienDeutsch2025-09-09csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Dateien zu manipulieren.
- WID-SEC-W-2025-2360Oracle Communications Applications: Mehrere SchwachstellenDeutsch2025-10-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications Applications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2025-2836Apple iOS und iPadOS: Mehrere SchwachstellenDeutsch2025-12-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apple iOS und Apple iPadOS ausnutzen, um sich erhöhte Berechtigungen zu verschaffen – inklusive Root-Rechten –, um Denial-of-Service-Angriffe oder Speicherbeschädigungen durchzuführen, um Spoofing-Angriffe durchzuführen, um Informationen offenzulegen, um beliebigen Code auszuführen oder um andere, nicht näher spezifizierte Angriffe durchzuführen.
- WID-SEC-W-2025-2838Apple macOS: Mehrere SchwachstellenDeutsch2025-12-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um beliebigen Programmcode auszuführen.
- WID-SEC-W-2026-0154Oracle Commerce: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Commerce ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2026-0167Oracle PeopleSoft: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle PeopleSoft ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2026-0168Oracle MySQL: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle MySQL ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2026-0783IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-03-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, um Informationen offenzulegen, um einen Denial of Service Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, und um Dateien zu manipulieren.
- WID-SEC-W-2026-1194Oracle Communications: Mehrere SchwachstellenDeutsch2026-04-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2026-1202Oracle Hyperion: Mehrere SchwachstellenDeutsch2026-04-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Hyperion ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- WID-SEC-W-2026-1730Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2026-05-28csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
- WID-SEC-W-2026-2189Dell PowerProtect Data Domain: Mehrere SchwachstellenDeutsch2026-07-02csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell PowerProtect Data Domain ausnutzen, um seine Privilegien zu erhöhen um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, um Informationen offenzulegen, und um Dateien zu manipulieren.
- WID-SEC-W-2026-2253IBM Security Verify Access: Mehrere SchwachstellenDeutsch2026-07-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM Security Verify Access ausnutzen, um erweiterte Berechtigungen zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, sensible Informationen offenzulegen und andere, nicht näher bezeichnete Angriffe durchzuführen.
- ICSA-26-043-06Siemens SINEC OS2026-01-28icsa · cisa_csaf_otUS
SINEC OS before V3.3 contains third-party components with multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- ICSA-26-188-05Siemens SINEC OS2026-06-02icsa · cisa_csaf_otUS
SINEC OS before V4.0 contains multiple vulnerabilities. Siemens has released a new version for RUGGEDCOM RST2428P and recommends to update to the latest version.
- CERTFR-2026-AVI-1351Multiples vulnérabilités dans Oracle MySQLFrançais2026-10-21vendor · certfrFR
- CURL-CVE-2025-9086Out of bounds read for cookie path2025-09-10vendor · osvUS
1. A cookie is set using the `secure` keyword for `https://target` 2. curl is redirected to or otherwise made to speak with `http://target` (same hostname, but using clear text HTTP) using the same cookie set 3. The same cookie name is set - but with only a slash as path (`path="/"`). Since this site is not secure, the cookie *should* be ignored. 4. A bug in the path comparison logic makes curl read outside a heap buffer boundary The bug either causes a crash or it potentially makes the comparison come to the wrong conclusion and lets the clear-text site override the contents of the secure cookie, contrary to expectations and depending on the memory contents immediately following the single-byte allocation that holds the path. The presumed and correct behavior would be to plainly ignore the second set of the cookie since it was already set as secure on a secure host so overriding it on an insecure host should not be okay.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2025/09/10/1cnnvd
- https://curl.se/docs/CVE-2025-9086.htmlcnnvd
- https://curl.se/docs/CVE-2025-9086.jsoncnnvd
- https://github.com/curl/curl/releasesPatchcnnvd
- https://hackerone.com/reports/3294999cnnvd
- https://lists.debian.org/debian-lts-announce/2026/01/msg00002.htmlcnnvd
- https://www.oracle.com/security-alerts/cpuapr2026.htmlcnnvd
- https://www.oracle.com/security-alerts/cpujan2026.htmlcnnvd
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