VulnerabilityAnalyzed
CVE-2026-76886
C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
CRITICAL 9.8EPSS 0.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122
- Affected
- wireshark/wireshark
- Source
- cve@gitlab.com
References
- https://gitlab.com/wireshark/wireshark/-/work_items/21439Exploit, Mitigation, Vendor Advisory
- https://www.wireshark.org/security/wnpa-sec-2026-75.htmlVendor Advisory
- https://gitlab.com/wireshark/wireshark/-/work_items/21446Exploit, Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.