CVE-2026-81642
CVE-2026-81642: 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 severityCritical9.8
Critical [CVE-2026-81642] Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY
CVE-2026-81642Source published Source updated
Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY. Red Hat rates this critical (CVSS 9.8). Weakness: CWE-122. Red Hat lists fixing advisory RHSA-2026:71419 with package unbound-0:1.6.6-5.el7_9.2, unbound-0:1.16.2-3.el9_2.6, unbound-0:1.16.2-8.el9_4.3, unbound-0:1.16.2-19.el9_6.2. Affected products named by the advisory: Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8.
- Related products — impact not confirmed
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Source-reported affected versions
- 1.26.0
- Source-reported fixed versions
- unbound-0:1.6.6-5.el7_9.2
- unbound-0:1.16.2-3.el9_2.6
- unbound-0:1.16.2-8.el9_4.3
- unbound-0:1.16.2-19.el9_6.2
9 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
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