Denial-of-Service Vulnerability in Firefox's Printing Component
CVE-2026-109781

Currently unrated

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
13 October 2026

What is CVE-2026-109781?

A Denial-of-Service vulnerability exists in the Printing: Output component of Firefox, which can cause disruptions in service for users. This issue was addressed in the updated versions of Firefox 158 and Firefox ESR 153.5, enhancing the security of the printing feature and ensuring smoother operation for all users.

Affected Version(s)

Firefox 153.5

Firefox 158

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2072852
https://www.mozilla.org/security/advisories/mfsa2026-106/
https://www.mozilla.org/security/advisories/mfsa2026-108/

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Thanh Nguyen
.