CVE-2026-15169Public exploit

Analyzer crash via unchecked UMTS FP index

Published Jul 8, 2026 · Updated Jul 8, 2026

Global buffer overflow in Wireshark 4.4.0 through 4.4.16 and 4.6.0 through 4.6.6 allows attackers to crash the analyzer. The UMTS FP E-DCH Type-2 dissector increments a packet-controlled MAC-is SDU index without enforcing the 16-entry inner-array bound, then writes attacker-derived LCH-ID and length values past the static subframes array. Triggering requires a malformed packet trace to be opened or a malformed packet to reach passive analysis, causing the Wireshark, TShark, or sharkd process to terminate.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Global buffer overflow in Wireshark 4.4.0 through 4.4.16 and 4.6.0 through 4.6.6 allows attackers to crash the analyzer. The UMTS FP E-DCH Type-2 dissector increments a packet-controlled MAC-is SDU index without enforcing the 16-entry inner-array bound, then writes attacker-derived LCH-ID and length values past the static subframes array. Triggering requires a malformed packet trace to be opened or a malformed packet to reach passive analysis, causing the Wireshark, TShark, or sharkd process to terminate.

The record

CVE
CVE-2026-15169
Published
Jul 8, 2026
Updated
Jul 8, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
CWE-122, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 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=4.4.0 <4.4.17
  2. Affected versionversion=4.6.0 <4.6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Wireshark Foundation · Wiresharkversion=4.4.0 <4.4.17; version=4.6.0 <4.6.7

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5GitLab Inc.CVSS: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.

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No observations available

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

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

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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