CVE-2026-109782
CVSS: UnknownDeferred
AliasesDEBIAN-CVE-2026-109782
Published 2026-10-13Last modified 2026-10-13
Vulnerability summary
CVSS score
Not scored
010
No CVSS score recordedEPSS score
0.20%
0%100%
Low · Change unavailableKEVNot listed0 of 3 catalogs
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 2026-10-13PublishedVulnerability first disclosed.
- 2026-10-13Last modifiedVulnerability information updated.
Description
Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and Thunderbird 153.5.
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
2026-10-142026-10-15
EPSS score0.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Debian1 product
- firefox-esrAll versions (No fix recorded) | < 153.5.0esr-1~deb12u1 | < 153.5.0esr-1~deb13u1
1 vendor · 1 product