Wireshark up to 4.4.14/4.6.4 DCP-ETSI Protocol Dissector heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Wireshark up to 4.4.14/4.6.4. This affects an unknown part of the component DCP-ETSI Protocol Dissector. The manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2026-5653. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Wireshark up to 4.4.14/4.6.4. This issue affects an unknown functionality of the component DCP-ETSI Protocol Dissector. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is availability. The summary by CVE is:

DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

The weakness was presented by Alexandre De Oliveira as 21122. It is possible to read the advisory at wireshark.org. The identification of this vulnerability is CVE-2026-5653 since 04/06/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 313625 (openSUSE 16 Security Update : wireshark (openSUSE-SU-2026:20685-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.4.15 or 4.6.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (313625) and CERT Bund (WID-SEC-2026-1311). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Wireshark

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (GitLab): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 313625
Nessus Name: openSUSE 16 Security Update : wireshark (openSUSE-SU-2026:20685-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Wireshark 4.4.15/4.6.5

Timelineinfo

04/06/2026 CVE reserved
04/30/2026 +24 days Advisory disclosed
04/30/2026 +0 days VulDB entry created
05/11/2026 +11 days VulDB entry last update

Sourcesinfo

Product: wireshark.org

Advisory: 21122
Researcher: Alexandre De Oliveira
Status: Confirmed

CVE: CVE-2026-5653 (🔒)
GCVE (CVE): GCVE-0-2026-5653
GCVE (VulDB): GCVE-100-360263
CERT Bund: WID-SEC-2026-1311 - Wireshark: Mehrere Schwachstellen

Entryinfo

Created: 04/30/2026 12:16
Updated: 05/11/2026 06:23
Changes: 04/30/2026 12:16 (66), 04/30/2026 18:01 (7), 05/11/2026 06:23 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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