Cyber Resilience

CVE-2026-6526

MediumPublic PoC

Published: 30 April 2026

Published
30 April 2026
Modified
01 May 2026
KEV Added
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Patch
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CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0012 2.5th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-6526 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Wireshark Wireshark. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Disable or Modify Tools (T1685); ranked at the 2.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability details

RTSP protocol dissector crash in Wireshark 4.6.0 to 4.6.4

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1685 Disable or Modify Tools Defense Impairment
Adversaries may disable, degrade, or tamper with security tools or applications (e.
attack.mitre.org →
Why these techniques?

NULL pointer dereference crash in Wireshark RTSP dissector directly enables DoS against the analysis tool, mapping to impairing defenses via tool modification/disablement.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

Affected Assets

wireshark
wireshark
4.6.0 — 4.6.4

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References