Dashboard / CVE-2023-0547

CVE-2023-0547

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2023-06-02 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: None
I: High
A: None

Description

OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vulnerability affects Thunderbird < 102.10.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
mozilla thunderbird 68.0 – 102.10

References & Advisories (2)

https://bugzilla.mozilla.org/show_bug.cgi?id=1811298
Issue Tracking Permissions Required Vendor Advisory

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003720
Percentile 31.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00372
2026-10-28
0.00372

Intelligence Sources

nvd ref →

External Links