wolfSSL 5.8.4 TLS 1.2 certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability was found in wolfSSL 5.8.4. It has been classified as critical. This vulnerability affects unknown code of the component TLS 1.2. Performing a manipulation results in certificate validation. This vulnerability was named CVE-2025-12889. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in wolfSSL 5.8.4. It has been classified as problematic. This affects an unknown code block of the component TLS 1.2. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on integrity. The summary by CVE is:

With TLS 1.2 connections a client can use any digest, specifically a weaker digest that is supported, rather than those in the CertificateRequest.

The weakness was presented by Jaehun Lee. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-12889 since 11/07/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for 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 276559 (Linux Distros Unpatched Vulnerability : CVE-2025-12889), 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 vulnerability database at Tenable (276559). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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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: 4.6
VulDB Meta Temp Score: 4.5

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

NVD Base Score: 5.4
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: 276559
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-12889

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: github.com

Timelineinfo

11/07/2025 CVE reserved
11/22/2025 +15 days Advisory disclosed
11/22/2025 +0 days VulDB entry created
12/05/2025 +13 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: Jaehun Lee
Status: Confirmed

CVE: CVE-2025-12889 (🔒)
GCVE (CVE): GCVE-0-2025-12889
GCVE (VulDB): GCVE-100-333303

Entryinfo

Created: 11/22/2025 08:48
Updated: 12/05/2025 16:21
Changes: 11/22/2025 08:48 (67), 11/23/2025 08:52 (2), 12/05/2025 16:21 (11)
Complete: 🔍
Cache ID: 216::103

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

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