CVE-2026-6529: Heap-based Buffer Overflow in Wireshark
Published Apr 30, 2026
·Updated
iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected Software
3 affected components
Wireshark Wireshark>=4.6.0<=4.6.4, >=4.4.0<=4.4.14
Wireshark Wireshark>=4.4.0<=4.4.14
Wireshark Wireshark>=4.6.0<=4.6.4
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Wiresharkto a version that resolves this vulnerability.Fixed in 4.6.5
Event History
Apr 30, 2026
CVE Published
via MITRE·05:36 AM
Data Sourced
via MITRE·05:36 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
Dec 24, 58314
Event
via FIRST·02:37 AM
Frequently Asked Questions
1
What is the severity of CVE-2026-6529?
CVE-2026-6529 is classified as a high severity vulnerability due to its potential to cause a denial of service.
2
How do I fix CVE-2026-6529?
To remediate CVE-2026-6529, users should upgrade to Wireshark versions 4.6.5 or 4.4.15 or later.
3
What versions of Wireshark are affected by CVE-2026-6529?
CVE-2026-6529 affects Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14.
4
What type of vulnerability is CVE-2026-6529?
CVE-2026-6529 is a heap-based buffer overflow vulnerability.
5
What can happen if CVE-2026-6529 is exploited?
If exploited, CVE-2026-6529 can cause a crash of the Wireshark application, leading to denial of service.