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Fencer Vulns
medium 6.5

CVE-2023-0668 json

Wireshark IEEE-C37.118 parsing buffer overflow

published 2023-06-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12700

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Due to failure in validating the length provided by an attacker-crafted IEEE-C37.118 packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

Patch / fix

  • Wireshark Foundation Wireshark 3.6.14, 4.0.6
  • wireshark Debian 12 4.0.6-1~deb12u1
  • wireshark Debian 14, Debian 13 4.0.6-1

debian advisories DEBIAN-CVE-2023-0668

  • wireshark RHEL 9 1:3.4.10-6.el9
  • wireshark-cli RHEL 9 1:3.4.10-6.el9

red hat advisories RHSA-2023:6469

  • wireshark SLE Real Time 15 SP3, SLE Module for Desktop Applications 15 SP5, SLE Module for Desktop Applications 15 SP4 +6 more 3.6.15-150000.3.97.1
  • wireshark SLE Real Time 15 SP3, SLE Module for Desktop Applications 15 SP5, SLE Module for Desktop Applications 15 SP4 +4 more 3.6.14-150000.3.92.1

suse advisories SUSE-SU-2023:3252-1SUSE-SU-2023:2320-1

  • wireshark openSUSE Tumbleweed 4.0.6-1.1

opensuse advisories openSUSE-SU-2024:12958-1

  • wireshark AlmaLinux 9 1:3.4.10-6.el9
  • wireshark-cli AlmaLinux 9 1:3.4.10-6.el9

almalinux advisories ALSA-2023:6469

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-0668 updated cvss 6.5

wireshark: IEEE C37.118 Synchrophasor dissector crash

  • Red Hat Enterprise Linux 6 wireshark, wireshark-gnome Red Hat Enterprise Linux 7 wireshark, wireshark-gnome
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) wireshark-devel 3.4.10-6.el9, wireshark-debuginfo 3.4.10-6.el9, wireshark-debugsource 3.4.10-6.el9, wireshark-cli-debuginfo 3.4.10-6.el9 Red Hat Enterprise Linux AppStream (v. 9) wireshark 3.4.10-6.el9, wireshark-cli 3.4.10-6.el9
    fixed: vendor fix RHSA-2023:6469
  • Red Hat Enterprise Linux 8 wireshark, wireshark-cli
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

2.26% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • takeonme.org https://takeonme.org/cves/CVE-2023-0668.html referenced PoC, tagged "exploit" by a source, unverified
  • gitlab.com https://gitlab.com/wireshark/wireshark/-/issues/19087 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/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.