CVE-2026-23220

mediumPriorität · verfolgen · 22EPSS 0.001 · 3. PerzentilDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.14% (3rd) EPSS

CVSS 5.5 · medium

Is it mine?

60 products

Prüfe deine Angriffsfläche

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-27

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix infinite loop caused by next_smb2_rcv_hdr_off reset in error paths The problem occurs when a signed request fails smb2 signature verification check. In __process_request(), if check_sign_req() returns an error, set_smb2_rsp_status(work, STATUS_ACCESS_DENIED) is called. set_smb2_rsp_status() set work->next_smb2_rcv_hdr_off as zero. By resetting next_smb2_rcv_hdr_off to zero, the pointer to the next command in the chain is lost. Consequently, is_chained_smb2_message() continues to point to the same request header instead of advancing. If the header's NextCommand field is non-zero, the function returns true, causing __handle_ksmbd_work() to repeatedly process the same failed request in an infinite loop. This results in the kernel log being flooded with "bad smb2 signature" messages and high CPU usage. This patch fixes the issue by changing the return value from SERVER_HANDLER_CONTINUE to SERVER_HANDLER_ABORT. This ensures that the processing loop terminates immediately rather than attempting to continue from an invalidated offset.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenRUGGEDCOM RST2428P (6GK6242-6PA00)siemens_psirt
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/110002573/
Behobenkernel-devel-0:6.19.8-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-devel-0:6.19.8-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-devel-0:6.19.8-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-devel-0:6.19.8-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-macros-0:6.19.8-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-macros-0:6.19.8-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-macros-0:6.19.8-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-macros-0:6.19.8-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-0:6.19.8-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-0:6.19.8-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-0:6.19.8-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-0:6.19.8-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-vanilla-0:6.19.8-1.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-vanilla-0:6.19.8-1.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-vanilla-0:6.19.8-1.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Behobenkernel-source-vanilla-0:6.19.8-1.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
BehobenRUGGEDCOM RST2428P (6GK6242-6PA00)cisa_csaf_ot
Update to V4.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/110002573/

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5.1–7.5

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 3.6

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · Siemens ProductCERT DE

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · SUSE Product Security

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-835USprimärCWE-835USCWE-835USCWE-835US

betroffene Produkte (60)

Betroffene Produkte und Versionsbereiche.

Amazon Linux 2alle Versionencert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxalle Versionencert_bundDEcpe:/o:debian:debian_linux:-
Dell Avamaralle Versionencert_bundDEcpe:/a:dell:avamar:-
Dell NetWorkeralle Versionencert_bundDEcpe:/a:dell:networker:-
Open Source Linux Kernelalle Versionencert_bundDEcpe:/o:linux:linux_kernel:-
Oracle Linuxalle Versionencert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxalle Versionencert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxalle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxalle Versionencert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEalle Versionencert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxalle Versionencert_bundDEcpe:/o:canonical:ubuntu_linux:-
RUGGEDCOM RST2428P (6GK6242-6PA00)alle Versionencisa_csaf_otUS
Siemens RUGGEDCOM RST2428P (6GK6242-6PA00)≤ vers:intdot/<4.0cisa_csaf_otUS
Linux Linuxalle Versionenenisa_euvdEU
Linux Linux≤ 6.6enisa_euvdEU
Linux Linux< 5.15.203enisa_euvdEU
Linux Linux< 6.1.164enisa_euvdEU
Linux Linux< 6.12.72enisa_euvdEU
Linux Linux< 6.18.11enisa_euvdEU
Linux Linux< 6.19.1enisa_euvdEU

20 von 60 angezeigt

Advisories (4)

Hersteller- und Ökosystem-Meldungen dazu.

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-2026-0462Linux Kernel: Mehrere SchwachstellenDeutsch2026-02-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.
openSUSE-SU-2026:10387-1kernel-devel-6.19.8-1.1 on GA media2026-03-18csaf · suse_csafDE
kernel-devel-6.19.8-1.1 on GA media
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.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cert_bund cisa_csaf_ot siemens_psirt suse_csaf NVD CVE.org MITRE

veröffentlicht 2026-02-18geändert 2026-10-26

verwandt (1,375)

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+1370 weitere

Referenzen (22)

Externe Belege — Patches, Meldungen, Analysen.

scry

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