Low [CVE-2026-76884] Denial of Service via ERF file parser crash
This low-severity Red Hat Linux advisory covers CVE-2026-76884 affecting Red Hat Enterprise Linux 10, Red Hat package: wireshark.
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Summary
A flaw was found in Wireshark. A remote attacker could exploit a buffer over-read vulnerability in the ERF (Extensible Record Format) file parser.
This could lead to a denial of service, making the application unavailable to legitimate users. Red Hat Enterprise Linux 6 through 9 ship Wireshark versions 1.x through 3.x, which predate the introduction of the vulnerable code in version 4.4.0 and are therefore not affected by this flaw.
Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L). Weakness: CWE-130.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
Mitigation checklist
- Avoid opening ERF (Extensible Record Format) capture files from untrusted or unknown sources in Wireshark.
Official advisory · high-confidence parse· fetched 51 minutes ago·verify at source
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