CVE-2025-9187

criticalpriority · track · 39EPSS 0.005 · 42 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.49% (42nd) EPSS

CVSS 9.8 · critical

Is it mine?

33 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

Memory safety bugs present in Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142 and Thunderbird 142.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USCWE-119US

affected products (33)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell ECS 3.8.1.0-3.8.1.7all versionscert_bundDEcpe:/h:dell:ecs:3.8.1.0_-_3.8.1.7
IGEL OSall versionscert_bundDEcpe:/o:igel:os:-
Mozilla Firefox <142all versionscert_bundDE
Mozilla Firefox ESR <115.27all versionscert_bundDE
Mozilla Firefox ESR <128.14all versionscert_bundDE
Mozilla Firefox ESR <140.2all versionscert_bundDE
Mozilla Firefox iOS <142all versionscert_bundDE
Mozilla Thunderbird <128.14all versionscert_bundDE
Mozilla Thunderbird <140.2all versionscert_bundDE
Mozilla Thunderbird <142all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell Secure Connect Gateway≤ Policy Manager <5.34.00.14cert_bundDE
Dell Secure Connect Gateway< 5.34.00.16cert_bundDE

showing 20 of 33

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1866Mozilla Firefox und Thunderbird: Mehrere SchwachstellenDeutsch2025-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren, um einen Denial of Service Angriff durchzuführen, und um beliebigen Programmcode auszuführen.
WID-SEC-W-2026-0778Dell Secure Connect Gateway Policy Manager: Mehrere SchwachstellenDeutsch2026-03-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway Policy Manager ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-08-19modified 2026-09-30

references (12)

External citations — patches, advisories, analysis.

scry

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