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Fencer Vulns
medium 5.5

CVE-2026-95395 json

Missing Release of Memory after Effective Lifetime in Wireshark

published 2026-09-29 41 d ago modified 2026-10-08 32 d ago also EUVD-2026-88702

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

IEEE C37.118 Synchrophasor protocol dissector memory leak in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

Patch / fix

  • Wireshark Foundation Wireshark 4.4.19, 4.6.9
  • wireshark Debian 13 4.4.19-0+deb13u1
  • wireshark Debian 14 4.6.9-1

debian advisories DEBIAN-CVE-2026-95395

  • wireshark openSUSE Tumbleweed 4.6.9-1.1

opensuse advisories openSUSE-SU-2026:11912-1

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-2026-95395 updated cvss 5.5

wireshark: wireshark: Denial of Service via memory leak in IEEE C37.118 Synchrophasor dissector

  • Red Hat Enterprise Linux 10 wireshark 4.4.2-10.el10_2
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 wireshark, wireshark-gnome, wireshark 4.4.2-10.el10_2 Red Hat Enterprise Linux 7 wireshark, wireshark-gnome, wireshark 4.4.2-10.el10_2 Red Hat Enterprise Linux 8 wireshark, wireshark-cli, wireshark 4.4.2-10.el10_2 Red Hat Enterprise Linux 9 wireshark, wireshark-cli, wireshark 4.4.2-10.el10_2
    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
41 d ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/wireshark/wireshark/-/work_items/21492 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 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
  • CWE-401 Missing Release of Memory after Effective Lifetime

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.