Linux · Security advisory · July 11, 2025

DLA-4239-1: thunderbird security update

DLA-4239-1, released July 11, 2025, fixes 1 CVE in thunderbird (version 1:128.12.0esr-1~deb11u1). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

HighUnsupported product
CVEs closed
1
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0058
47th percentile

Fixed package versions

ProductReleaseFixed in
thunderbirdDebian 11.6 (bullseye)1:128.12.0esr-1~deb11u1

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
High CVE-2025-5986 Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links 7.5 0.0058 None reported
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