6.5

CVE-2026-109781

CVSS: 6.5v3.1MediumDeferred
AliasesDEBIAN-CVE-2026-109781
Published 2026-10-13Last modified 2026-10-13
Open JSON

Vulnerability summary

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · Change unavailable
KEVNot listed0 of 3 catalogs
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:12116-1

Timeline

  1. 2026-10-13
    PublishedVulnerability first disclosed.
  2. 2026-10-13
    Last modifiedVulnerability information updated.

Description

Denial-of-service in the Printing: Output component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

2026-10-142026-10-15
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • firefox-esrAll versions (No fix recorded) | < 153.5.0esr-1~deb12u1 | < 153.5.0esr-1~deb13u1
  • thunderbirdAll versions (No fix recorded)

1 vendor · 2 products

References

6 links