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Wireshark EUVDEUVD-2026-57743

| CVE-2026-19696 MEDIUM
Out-of-bounds Write (CWE-787)
2026-08-13 GitLab GHSA-5rr4-x8fc-q7fc
Buffer Overflow Denial Of Service Memory Corruption Microsoft Wireshark Wireshark Foundation
5.5
CVSS 3.1 · NVD
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Severity by source

Vendor (GitLab) PRIMARY
MEDIUM
qualitative
NVD
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
vuln.today AI
6.6 MEDIUM

Local file-open trigger (AV:L), no privilege required since any user can open files (PR:N), user must open the crafted file (UI:R), primary impact is crash/DoS (A:H) with minor memory-side impacts (C:L/I:L).

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

Primary rating from Vendor (GitLab).

CVSS VectorNVD

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

Lifecycle Timeline

4
CVSS changed
Sep 01, 2026 - 14:37 NVD
6.6 (MEDIUM) 5.5 (MEDIUM)
Patch available
Aug 13, 2026 - 09:15 EUVD
Analysis Generated
Aug 13, 2026 - 09:05 vuln.today
CVE Published
Aug 13, 2026 - 08:04 cve.org
MEDIUM 6.6

DescriptionNVD

Ixia IxVeriWave and Vector Informatik BLF file parser crashes in 4.6.0 to 4.6.7 allows denial of service on Windows

AnalysisAI

Wireshark 4.6.0 through 4.6.7 on Windows crashes when parsing malformed Ixia IxVeriWave capture files or Vector Informatik BLF files, resulting in denial of service via an out-of-bounds write (CWE-787). The vulnerability requires a user to open a crafted file, making it a user-assisted local attack. No public exploit code or active exploitation has been identified at time of analysis.

Technical ContextAI

Wireshark (cpe:2.3:a:wireshark_foundation:wireshark:*:*:*:*:*:*:*:*) is a widely-used open-source network protocol analyzer. Two distinct file parsers are affected: the Ixia IxVeriWave capture file parser and the Vector Informatik BLF (Binary Logging Format) parser, both used to import proprietary capture formats. CWE-787 (Out-of-bounds Write) indicates the parsers write data beyond allocated buffer boundaries when processing malformed input, consistent with the Memory Corruption and Buffer Overflow tags. The crash behavior manifests specifically on Windows, suggesting platform-specific memory handling differences may influence the severity or reproducibility of the flaw.

RemediationAI

Upgrade Wireshark to a version beyond 4.6.7 per the vendor advisory at https://www.wireshark.org/security/wnpa-sec-2026-82.html - the exact patched version should be confirmed from that advisory, as a specific fix version was not enumerated in the available intelligence data. As a compensating control pending upgrade, administrators can restrict users from opening untrusted IxVeriWave or BLF capture files, or configure file association policies on Windows to prevent automatic opening of these formats. Network defenders distributing Wireshark via enterprise software management tools should prioritize pushing the updated build. No workaround fully eliminates the parser exposure without disabling the affected file format support.

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Same weakness CWE-787 – Out-of-bounds Write

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CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2012-1889 HIGH POC
8.8
CVE-2010-3333 HIGH POC
7.8
CVE-2014-1761 HIGH POC
7.8
CVE-2009-3129 HIGH POC
7.8
CVE-2021-1732 HIGH POC
7.8
CVE-2013-3346 CRITICAL POC
9.8

Same technique Buffer Overflow

View all
CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise High Performance Computing 12 Not-Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Not-Affected

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EUVD-2026-57743 vulnerability details – vuln.today
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