CVE-2026-3202Network attack vector

Process crash via null NTS-KE string comparison

Published Feb 25, 2026 · Updated Feb 25, 2026

NULL pointer dereference in the NTS-KE dissector in Wireshark 4.6.0 through 4.6.3 allows attackers to crash the process. The dissect_nts_ke function passes a null pointer to strcmp while decoding a malformed NTS-KE packet, causing a zero-page read and process termination. Triggering requires the packet to be injected into captured traffic or a user to open a crafted trace file; the demonstrated consequence is a crash only.

CVSS severity4.7
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the NTS-KE dissector in Wireshark 4.6.0 through 4.6.3 allows attackers to crash the process. The dissect_nts_ke function passes a null pointer to strcmp while decoding a malformed NTS-KE packet, causing a zero-page read and process termination. Triggering requires the packet to be injected into captured traffic or a user to open a crafted trace file; the demonstrated consequence is a crash only.

The record

CVE
CVE-2026-3202
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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 <4.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wireshark Foundation · Wiresharkversion=4.6.0 <4.6.4

Published CVSS scores

4.7GitLab Inc.CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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