wolfSSL up to 5.9.1 Configuration certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in wolfSSL up to 5.9.1. The impacted element is an unknown function of the component Configuration Handler. The manipulation leads to certificate validation. This vulnerability is documented as CVE-2026-7532. The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in wolfSSL up to 5.9.1. This issue affects some unknown processing of the component Configuration Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is integrity. The summary by CVE is:

iPAddress name constraints bypass when WOLFSSL_IP_ALT_NAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certificate to bypass an issuing CA's IP address constraints.

The weakness was released by Ankur Tyagi. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-7532 since 04/30/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 323818 (Linux Distros Unpatched Vulnerability : CVE-2026-7532), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (323818) and EUVD (EUVD-2026-39580). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 323818
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-7532

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: github.com

Timelineinfo

04/30/2026 CVE reserved
06/25/2026 +56 days VulDB entry created
06/26/2026 +0 days Advisory disclosed
07/02/2026 +6 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: Ankur Tyagi
Status: Confirmed

CVE: CVE-2026-7532 (🔒)
GCVE (CVE): GCVE-0-2026-7532
GCVE (VulDB): GCVE-100-374051
EUVD: 🔒

Entryinfo

Created: 06/26/2026 01:23
Updated: 07/02/2026 21:59
Changes: 06/26/2026 01:23 (67), 06/26/2026 16:02 (1), 07/01/2026 16:20 (2), 07/02/2026 21:59 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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