Patch Forecast
Amber warning
Patch this week.

CVE-2026-109762

Incorrect boundary conditions in the SVG component

Risk score
63/100
CVSS
8.8 v3.1
Exploit chance (30 days)
0.3%
Published
13 Oct 2026

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What to know

What it is
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 8.8 high
  • Remotely exploitable without logging in

References

Original description

Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Last activity 13 Oct 2026. Patch Forecast updates every hour.