Medium [CVE-2026-19696] Out-of-bounds Write in Wireshark
This medium-severity Red Hat Linux advisory covers CVE-2026-19696.
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Summary
Ixia IxVeriWave and Vector Informatik BLF file parser crashes in 4.6.0 to 4.6.7 allows denial of service on Windows This issue occurs when malformed packets are decoded from a packet capture file, causing an out-of-bounds write, resulting in a denial of service. This issue will cause a crash in Wireshark, with no evidence of arbitrary code execution.
This vulnerability can only be exploited when a malformed packet capture file is processed on a Windows system. Due to these reasons, this flaw has been rated with a moderate severity.
Red Hat severity: Moderate — CVSS 6.6 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H). Weakness: CWE-787.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
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 3 hours 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 3 hours ago·verify at source
Mitigation checklist
- To mitigate this vulnerability, do not open untrusted capture files.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Discussion(0)
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