CVE-2026-43964
CVE-2026-43964: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
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 severityHigh7.5
High [CVE-2026-43964] buffer over-read via malformed enhanced status code
CVE-2026-43964Source published
buffer over-read via malformed enhanced status code. Red Hat rates this important (CVSS 7.5). Weakness: CWE-193. Affected package(s): postfix. Resolved in Red Hat advisory RHSA-2026:25932 — update the affected packages (`sudo dnf update`).
- Affected products in this advisory
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service
5 more entries in the full advisory.
- Source-reported affected versions
- postfix-2:3.5.8-8.el8_10
- postfix-2:3.8.5-10.el10_2
- postfix-2:3.5.25-3.el9_8
- Source-reported fixed versions
- RHSA-2026:25932
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:25932 (`sudo dnf update` / `yum update`).
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