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CVE

DEBIAN-CVE-2026-4689

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component.
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CVE

DEBIAN-CVE-2026-4689

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component.

Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2026-4689

Severity

10

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
10
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
140.9.0esr-1~deb12u1,140.9.0esr-1~deb13u1

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