CVE-2026-12299 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	5.4 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Affected Products (NVD)

Vendor	Product	Version
mozilla	firefox_esr	𝑥 < 115.37.0
mozilla	firefox	𝑥 < 152.0
mozilla	firefox_esr	140.0 ≤ 𝑥 < 140.12.0
mozilla	thunderbird	𝑥 < 152.0.0
mozilla	thunderbird_esr	140.0 ≤ 𝑥 < 140.12.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

firefox

sid	vulnerable

firefox-esr

bookworm	vulnerable
bookworm (security)	vulnerable
bullseye	vulnerable
bullseye (security)	vulnerable
forky	vulnerable
sid	vulnerable
trixie	vulnerable
trixie (security)	vulnerable

thunderbird

bookworm	vulnerable
bookworm (security)	vulnerable
bullseye	vulnerable
bullseye (security)	vulnerable
forky	vulnerable
sid	vulnerable
trixie	vulnerable
trixie (security)	vulnerable

Common Weakness Enumeration

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2043139

https://www.mozilla.org/security/advisories/mfsa2026-57/

https://www.mozilla.org/security/advisories/mfsa2026-58/

https://www.mozilla.org/security/advisories/mfsa2026-59/

https://www.mozilla.org/security/advisories/mfsa2026-60/

https://www.mozilla.org/security/advisories/mfsa2026-61/