CVE-2021-29956

MEDIUM
4.3
CVSS Score
Published: June 24, 2021 at 01:17 PM UTC
Updated: June 17, 2026 at 03:48 AM UTC
1 product affected across 1 vendorThunderbird

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.8%

Description

OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored unencrypted on the user's local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automatically protect keys that had been imported using affected Thunderbird versions. This vulnerability affects Thunderbird < 78.10.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 78.10.278.8.1 ≤ v ≤ 78.10.1
Affected range stops below 78.10.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCExploitPatchVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1710290
x_refsource_MISCRelease NotesVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-22/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

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