Home/CVE/Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certific
CVE

CVE-2023-0430

Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certific

Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by this bug.

This vulnerability affects Thunderbird < 102.7.1.

MEDIUM · CVSS 6.5 EPSS 0.00088
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

1
mozilla thunderbird>= 68.0 and < 102.7.1
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Jun 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:12652-1
suse-csafSUSE-SU-2023:0329-1
usnUSN-5824-1
rhsaRHSA-2023:0600Important
rhsaRHSA-2023:0605Important
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.mozilla.org/show_bug.cgi?id=1769000Issue TrackingVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-04/Vendor Advisory
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