VDB

CVE-2023-50761

CVE-2023-50761 PUBLISHED

Reported by mozilla · Published December 19, 2023

The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
thunderbirdAmazon Linux115.6.0-1.amzn2.0.1
ThunderbirdMozilla115.6

Affected products

VendorProductVersions
MozillaThunderbirdunspecified
amazon:2thunderbird0
MozillaThunderbird*

Timeline

  • Dec 19, 2023 CVE Published
  • Dec 20, 2023 EPSS Score (30 in total, the first dated here)
  • Jan 12, 2024 PoC Published
  • Oct 5, 2024 Coalition ESS Score (8 in total, the first dated here)
  • Jun 2, 2025 CVE Updated
  • Jan 27, 2026 Distribution Patch (31 in total, the first dated here)
  • Jan 27, 2026 Security Advisory (35 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2023-50761
vulnetix vdb fixes CVE-2023-50761

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2023-50761/fixes/registry"

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References

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