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Wireshark CVE-2026-15169

| EUVDEUVD-2026-42416 HIGH
Heap-based Buffer Overflow (CWE-122)
2026-07-08 cve@gitlab.com GHSA-9gc8-6grc-r8pc
Heap Overflow Denial Of Service Buffer Overflow Wireshark Red Hat Suse
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vuln.today AI
7.5 HIGH

Crafted UMTS FP frame parsed over the network with low complexity and no auth causes only an application crash, so A:H with C:N/I:N and no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Red Hat
5.5 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

7
Analysis Updated
Jul 09, 2026 - 20:13 vuln.today
v3 (cvss_changed)
Analysis Updated
Jul 09, 2026 - 20:13 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Jul 09, 2026 - 20:07 vuln.today
cvss_changed
Severity Changed
Jul 09, 2026 - 20:07 NVD
MEDIUM HIGH
CVSS changed
Jul 09, 2026 - 20:07 NVD
5.5 (MEDIUM) 7.5 (HIGH)
Analysis Generated
Jul 08, 2026 - 22:13 vuln.today
Patch available
Jul 08, 2026 - 22:04 EUVD

DescriptionNVD

UMTS FP protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service

AnalysisAI

Denial of service in Wireshark's UMTS FP protocol dissector affects the 4.6.0-4.6.6 and 4.4.0-4.4.16 release branches, where a malformed UMTS Frame Protocol packet triggers a heap-based buffer overflow (CWE-122) that crashes the application. A remote attacker who can get the crafted frame parsed - via live capture on a monitored segment or a shared capture file - can reliably terminate the analyzer, with no confidentiality or integrity impact. Publicly available exploit code exists (SSVC=poc) but it is not on CISA KEV, and EPSS is low at 0.14% (4th percentile), indicating minimal observed exploitation pressure.

Technical ContextAI

Wireshark is a widely used open-source network protocol analyzer whose functionality is built from hundreds of protocol dissectors. The affected component is the UMTS FP (Frame Protocol) dissector, part of the 3GPP UMTS/mobile-network protocol suite used to carry transport-channel data over Iub/Iur interfaces. The root cause is classified as CWE-122, a heap-based buffer overflow: the dissector mishandles length or offset values while parsing a UMTS FP frame, writing or reading past an allocated heap buffer and corrupting memory, which manifests as a crash. The CPE data scopes the flaw to the Wireshark application (cpe:2.3:a:wireshark:wireshark) rather than any bundled library, confirming the defect lives in Wireshark's own dissection code.

RemediationAI

Vendor-released patch: upgrade to Wireshark 4.6.7 (for the 4.6.x branch) or 4.4.17 (for the 4.4.x branch), the first fixed releases per the vendor advisory wnpa-sec-2026-59 (https://www.wireshark.org/security/wnpa-sec-2026-59.html). Because the fixed versions are available, patching is the primary and preferred action. Where immediate upgrade is not possible, the practical compensating control is to disable the UMTS FP dissector via Analyze → Enabled Protocols (uncheck 'fp'/UMTS FP), which prevents the vulnerable code path at the cost of losing UMTS FP decoding; additionally, avoid opening untrusted capture (.pcap/.pcapng) files and restrict live captures on untrusted segments, since parsing the crafted frame is what triggers the crash. These mitigations only reduce exposure and are not a substitute for the patch.

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Same weakness CWE-122 – Heap-based Buffer Overflow

View all
CVE-2023-4911 HIGH POC
7.8
CVE-2023-27997 CRITICAL
9.8
CVE-2025-24985 HIGH POC
7.8
CVE-2026-53362 HIGH POC
7.8
CVE-2025-21418 HIGH
7.8
CVE-2023-23376 HIGH
7.8
CVE-2025-24993 HIGH
7.8
CVE-2024-30085 HIGH POC
7.8

Same technique Heap Overflow

View all
CVE-2023-4911 HIGH POC
7.8
CVE-2023-27997 CRITICAL
9.8
CVE-2025-5419 HIGH POC
8.8
CVE-2026-53362 HIGH POC
7.8
CVE-2025-21418 HIGH
7.8
CVE-2023-23376 HIGH
7.8
CVE-2024-30085 HIGH POC
7.8
CVE-2023-6246 HIGH POC
8.4

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected

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CVE-2026-15169 vulnerability details – vuln.today
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