CVE-2026-95390Public exploitHinoki check available

Crash via unchecked PEAK TRC error-frame tokens

Published Sep 29, 2026 · Updated Sep 29, 2026

A malformed PEAK CAN TRC trace in Wireshark 4.6.0 through 4.6.8 allows attackers to crash the reader when a user opens the file. The wiretap/peak-trc.c v1 ERROR-frame parser passes missing data tokens to g_ascii_strtoull() without checking the split-token count, dereferencing NULL. An attacker must induce someone to open the crafted trace; the demonstrated consequence is a reader crash, not code execution.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

A malformed PEAK CAN TRC trace in Wireshark 4.6.0 through 4.6.8 allows attackers to crash the reader when a user opens the file. The wiretap/peak-trc.c v1 ERROR-frame parser passes missing data tokens to g_ascii_strtoull() without checking the split-token count, dereferencing NULL. An attacker must induce someone to open the crafted trace; the demonstrated consequence is a reader crash, not code execution.

The record

CVE
CVE-2026-95390
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
CWE-476
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.6.0 <4.6.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Wireshark Foundation · Wiresharkversion=4.6.0 <4.6.9

Published CVSS scores

5.5GitLab CNACVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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