CVE-2026-76924: CWE-125: Out-of-bounds Read in Wireshark Foundation Wireshark
Description
Kerberos protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
CVSS v3.1
Score 5.5medium
Affected software
Wireshark Foundation
Wireshark
pkg:github/wireshark/wiresharkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-76924 affects Wireshark's Kerberos protocol dissector in versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7. It is classified as a CWE-125 out-of-bounds read, which can cause the software to crash when processing malformed Kerberos packets, leading to denial of service. The CVSS 3.1 vector indicates the attack requires local access with low complexity and no privileges but user interaction is required. Confidentiality and integrity are not impacted, but availability is affected.
Potential Impact
Successful exploitation of this vulnerability results in a denial of service by crashing the Wireshark application when it processes crafted Kerberos protocol data. There is no impact on confidentiality or integrity. The attack requires local access and user interaction.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the Wireshark Foundation vendor advisory for current remediation guidance. Until a fix is applied, avoid opening untrusted Kerberos protocol traffic in affected Wireshark versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-08-19T22:44:45.543Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8633c7acd9273b49b8ad40
Added to database: 08/19/2026, 22:52:55 UTC
Last enriched: 09/18/2026, 23:35:09 UTC
Last updated: 10/04/2026, 10:02:29 UTC
Views: 51
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.