Wireshark up to 4.4.14/4.6.4 iLBC Codec double free

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

Summaryinfo

A vulnerability was found in Wireshark up to 4.4.14/4.6.4 and classified as problematic. Impacted is an unknown function of the component iLBC Codec. Such manipulation leads to double free. This vulnerability is documented as CVE-2026-5657. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wireshark up to 4.4.14/4.6.4 and classified as problematic. Affected by this issue is an unknown code of the component iLBC Codec. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is availability. CVE summarizes:

iLBC codec 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 released by Alexandre De Oliveira as 21113. The advisory is available at wireshark.org. This vulnerability is handled as CVE-2026-5657 since 04/06/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not 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). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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

Exploitinginfo

Class: Double free
CWE: CWE-415 / 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: 21113
Researcher: Alexandre De Oliveira
Status: Confirmed

CVE: CVE-2026-5657 (🔒)
GCVE (CVE): GCVE-0-2026-5657
GCVE (VulDB): GCVE-100-360266
CERT Bund: WID-SEC-2026-1311 - Wireshark: Mehrere Schwachstellen

Entryinfo

Created: 04/30/2026 12:17
Updated: 05/11/2026 15:37
Changes: 04/30/2026 12:17 (65), 04/30/2026 18:01 (7), 05/11/2026 15:37 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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