vulnerability
Red Hat: CVE-2025-9817: Wireshark: NULL Pointer Dereference in Wireshark (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:M/Au:N/C:N/I:N/A:C) | Sep 3, 2025 | Feb 3, 2026 | Feb 3, 2026 |
Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
Sep 3, 2025
Added
Feb 3, 2026
Modified
Feb 3, 2026
Description
A flaw was found in Wireshark’s SSH dissector, caused by a missing NULL check in key exchange parameter handling. This vulnerability can trigger a segmentation fault when processing malformed SSH traffic or crafted capture files, potentially causing the application to crash and resulting in a denial of service.
Solutions
redhat-upgrade-wiresharkredhat-upgrade-wireshark-cliredhat-upgrade-wireshark-cli-debuginforedhat-upgrade-wireshark-debuginforedhat-upgrade-wireshark-debugsourceredhat-upgrade-wireshark-devel
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.