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Fencer Vulns
medium 5.3

CVE-2023-3649 json

Buffer Over-read in Wireshark

published 2023-07-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44293

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

iSCSI dissector crash in Wireshark 4.0.0 to 4.0.6 allows denial of service via packet injection or crafted capture file

Patch / fix

  • Wireshark Foundation Wireshark 4.0.7
  • wireshark Debian 12 4.0.11-1~deb12u1
  • wireshark Debian 14, Debian 13 4.0.7-1

debian advisories DEBIAN-CVE-2023-3649

  • wireshark SLE Module for Desktop Applications 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 4.2.6-150600.18.6.1

suse advisories SUSE-SU-2024:3165-1

  • wireshark openSUSE Tumbleweed 4.0.7-2.1

opensuse advisories openSUSE-SU-2024:13067-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Wireshark Foundation Wireshark

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.