CVE-2026-2447 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.8 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 5%

Affected Products (NVD)

Vendor	Product	Version
mozilla	firefox_esr	𝑥 < 115.32.1
mozilla	firefox	𝑥 < 147.0.4
mozilla	firefox_esr	116.0 ≤ 𝑥 < 140.7.1
mozilla	thunderbird	𝑥 < 140.7.2
mozilla	thunderbird	141.0 ≤ 𝑥 < 147.0.2

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

firefox

sid	151.0-1 fixed

firefox-esr

bookworm	140.10.2esr-1~deb12u1 fixed
bookworm (security)	140.11.0esr-1~deb12u1 fixed
bullseye	unimportant
bullseye (security)	140.11.0esr-1~deb11u1 fixed
forky	140.10.2esr-1 fixed
sid	140.11.0esr-1 fixed
trixie	140.10.2esr-1~deb13u1 fixed
trixie (security)	140.11.0esr-1~deb13u1 fixed

libvpx

bookworm	1.12.0-1+deb12u5 fixed
bookworm (security)	1.12.0-1+deb12u5 fixed
bullseye	vulnerable
bullseye (security)	1.9.0-1+deb11u5 fixed
forky	1.16.0-3 fixed
sid	1.16.0-3 fixed
trixie	1.15.0-2.1+deb13u1 fixed
trixie (security)	1.15.0-2.1+deb13u1 fixed

thunderbird

bookworm	1:140.10.1esr-1~deb12u1 fixed
bookworm (security)	1:140.11.0esr-1~deb12u1 fixed
bullseye	unimportant
bullseye (security)	1:140.11.0esr-1~deb11u1 fixed
forky	1:140.10.2esr-1 fixed
sid	1:140.11.0esr-1 fixed
trixie	1:140.10.1esr-1~deb13u1 fixed
trixie (security)	1:140.11.0esr-1~deb13u1 fixed

openSUSE / SLES Releases

openSUSE Product

Release

MozillaFirefox

suse enterprise desktop 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise server 12 SP3	140.7.1-112.298.1 fixed
suse enterprise server 12 SP5	140.7.1-112.298.1 fixed
suse enterprise server 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP7	140.7.1-150200.152.219.1 fixed

MozillaFirefox-devel

suse enterprise desktop 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise server 12 SP3	140.7.1-112.298.1 fixed
suse enterprise server 12 SP5	140.7.1-112.298.1 fixed
suse enterprise server 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP7	140.7.1-150200.152.219.1 fixed

MozillaFirefox-translations-common

suse enterprise desktop 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise server 12 SP3	140.7.1-112.298.1 fixed
suse enterprise server 12 SP5	140.7.1-112.298.1 fixed
suse enterprise server 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP7	140.7.1-150200.152.219.1 fixed

MozillaFirefox-translations-other

suse enterprise desktop 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise sap 15 SP7	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP4	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP5	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP6	140.7.1-150200.152.219.1 fixed
suse enterprise server 15 SP7	140.7.1-150200.152.219.1 fixed

MozillaThunderbird

suse enterprise desktop 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise sap 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise server 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise workstation 15 SP7	140.7.2-150200.8.257.1 fixed

MozillaThunderbird-translations-common

suse enterprise desktop 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise sap 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise server 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise workstation 15 SP7	140.7.2-150200.8.257.1 fixed

MozillaThunderbird-translations-other

suse enterprise desktop 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise sap 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise server 15 SP7	140.7.2-150200.8.257.1 fixed
suse enterprise workstation 15 SP7	140.7.2-150200.8.257.1 fixed

Red Hat Enterprise Linux Releases

Red Hat Product

Release

firefox

RHEL 9

0:140.8.0-2.el9_7

fixed

firefox-x11

RHEL 9

0:140.8.0-2.el9_7

fixed

libvpx

RHEL 8	0:1.7.0-13.el8_10 fixed
RHEL 9	0:1.9.0-10.el9_7 fixed

libvpx-devel

RHEL 8	0:1.7.0-13.el8_10 fixed
RHEL 9	0:1.9.0-10.el9_7 fixed

thunderbird

RHEL 9

0:140.8.0-1.el9_7

fixed

Common Weakness Enumeration

CWE-122 - Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2014390

https://www.mozilla.org/security/advisories/mfsa2026-10/

https://www.mozilla.org/security/advisories/mfsa2026-11/

https://lists.debian.org/debian-lts-announce/2026/02/msg00028.html