VulnerabilityModified
CVE-2026-5403
SBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
HIGH 7.8EPSS 0.16%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
SBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-787
- Affected
- wireshark/wireshark
- Source
- cve@gitlab.com
References
- https://gitlab.com/wireshark/wireshark/-/issues/21103Exploit, Issue Tracking, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2026-16.htmlVendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-5403
- https://bugzilla.redhat.com/show_bug.cgi?id=2464271
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5403.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.