CVE-2026-76924: CWE-125: Out-of-bounds Read in Wireshark Foundation Wireshark
CVE-2026-76924 is a medium severity vulnerability in Wireshark affecting versions 4.4.0 and 4.6.0. It involves an out-of-bounds read in the Kerberos protocol dissector that can cause the application to crash, resulting in a denial of service condition.
AI Analysis
Technical Summary
This vulnerability (CWE-125) exists in the Kerberos protocol dissector of Wireshark versions 4.4.0 and 4.6.0. An out-of-bounds read can be triggered, causing the application to crash and leading to denial of service. The CVSS 3.1 base score is 5.5, reflecting a local attack vector with low complexity and no privileges required, but user interaction is necessary. There is no confidentiality or integrity impact, only availability is affected.
Potential Impact
Successful exploitation causes a denial of service by crashing Wireshark when processing crafted Kerberos protocol data. There is no impact on confidentiality or integrity of data. The attack requires local access and user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor Wireshark Foundation advisories for updates and avoid processing untrusted Kerberos protocol traffic until a fix is available.
CVE-2026-76924: CWE-125: Out-of-bounds Read in Wireshark Foundation Wireshark
Description
CVE-2026-76924 is a medium severity vulnerability in Wireshark affecting versions 4.4.0 and 4.6.0. It involves an out-of-bounds read in the Kerberos protocol dissector that can cause the application to crash, resulting in a denial of service condition.
CVSS v3.1
Score 5.5medium
Affected software
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
This vulnerability (CWE-125) exists in the Kerberos protocol dissector of Wireshark versions 4.4.0 and 4.6.0. An out-of-bounds read can be triggered, causing the application to crash and leading to denial of service. The CVSS 3.1 base score is 5.5, reflecting a local attack vector with low complexity and no privileges required, but user interaction is necessary. There is no confidentiality or integrity impact, only availability is affected.
Potential Impact
Successful exploitation causes a denial of service by crashing Wireshark when processing crafted Kerberos protocol data. There is no impact on confidentiality or integrity of data. The attack requires local access and user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Users should monitor Wireshark Foundation advisories for updates and avoid processing untrusted Kerberos protocol traffic until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitLab
- Date Reserved
- 2026-08-19T22:44:45.543Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8633c7acd9273b49b8ad40
Added to database: 08/19/2026, 22:52:55 UTC
Last enriched: 08/19/2026, 23:09:11 UTC
Last updated: 08/20/2026, 01:28:33 UTC
Views: 5
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.