Review reviewHigh

CVE-2026-5403

Wireshark Foundation Wireshark, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6

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

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.16%

Technical severityCVSS 7.8

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

Product: Wireshark Foundation Wireshark, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6
Affected versions: >= 4.6.0 < 4.6.5, >= 4.4.0 < 4.4.15
Fixed versions: 4.4.15, 4.6.5

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Wireshark Foundation Wireshark, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.