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HIGH · 7.8

CVE-2025-9817

SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

Vulnerability Description

SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
WiresharkWireshark>= 4.4.0, <= 4.4.8

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2025-9817?

CVE-2025-9817 is a vulnerability with a CVSS score of 7.8 (HIGH). SSH dissector crash in Wireshark 4.4.0 to 4.4.8 allows denial of service

How severe is CVE-2025-9817?

CVE-2025-9817 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-9817?

Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark.