Out-of-bounds Read in Wireshark

CVE-2023-6174

SSH dissector crash in Wireshark 4.0.0 to 4.0.10 allows denial of service via packet injection or crafted capture file

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (53.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-6174: held from 0.007 to 0.007.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-6174?
CVE-2023-6174 is a medium-severity vulnerability in Wireshark, classified under Out-of-bounds Read. CVSS score: 6.3/10. Published 2023-11-16.
How severe is CVE-2023-6174?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2023-6174 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.