CVE-2026-12312
CVE-2026-12312: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.1
Medium [CVE-2026-12312] Memory safety bug fixed in Thunderbird ESR 140.12
CVE-2026-12312Source published
Memory safety bug fixed in Thunderbird ESR 140.12. Red Hat rates this moderate (CVSS 6.1). Weakness: CWE-787. Affected package(s): firefox, thunderbird. Resolved in Red Hat advisory RHSA-2026:29940 — update the affected packages (`sudo dnf update`).
- Related products — impact not confirmed
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 1
- firefox
1 more entries in the full advisory.
- Source-reported affected versions
- firefox-0:140.12.0-1.el9_8
- firefox-0:140.12.0-1.el8_10
- thunderbird-0:140.12.0-1.el8_10
- firefox-0:140.12.0-1.el10_2
2 more entries in the full advisory.
- Source-reported fixed versions
- RHSA-2026:29940
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:29940 (`sudo dnf update` / `yum update`).
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