CVE-2025-11711

mediumpriority · track · 0EPSS 0.002 · 14 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (14th) EPSS

CVSS 6.5 · medium

Is it mine?

43 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.5

v3.16.5mediumAV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:Nsecondaryexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-591USCWE-591US

affected products (43)

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:-
IGEL OS 11all versionscert_bundDEcpe:/o:igel:os:11
IGEL OS 12all versionscert_bundDEcpe:/o:igel:os:12
Mozilla Firefox <144all versionscert_bundDE
Mozilla Firefox ESR <115.29all versionscert_bundDE
Mozilla Firefox ESR <140.4all versionscert_bundDE
Mozilla Thunderbird <140.4all versionscert_bundDE
Mozilla Thunderbird <144all 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:-
Red Hat Enterprise Linux 8all versionscert_bundDEcpe:/o:redhat:enterprise_linux:8
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Mozilla Firefox< 144cert_bundDE
Mozilla Firefox ESR< 115.29cert_bundDE
Mozilla Firefox ESR< 140.4cert_bundDE
Mozilla Thunderbird< 140.4cert_bundDE

showing 20 of 43

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2025-0325Kwetsbaarheden verholpen in Mozilla Firefox en ThunderbirdNL2025-10-20csaf · ncsc_nlNL
Mozilla heeft kwetsbaarheden verholpen in Firefox en Thunderbird (Specifiek voor versies onder 144).
WID-SEC-W-2025-2275Mozilla Firefox: Mehrere SchwachstellenDeutsch2025-10-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox, Mozilla Firefox ESR und Mozilla Thunderbird ausnutzen, um Code ausführen, privilegierte Informationen auslesen, Sicherheitsmechanismen umgehen oder Benutzer durch UI-Manipulation täuschen.

also known as (9)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2025-10-14modified 2026-10-23

references (20)

External citations — patches, advisories, analysis.

scry

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