OpenBSD up to 7.5 Errata 014/7.6 Errata 005 wg buffer size

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenBSD up to 7.5 Errata 014/7.6 Errata 005. It has been declared as critical. Affected is an unknown function of the component wg. Such manipulation leads to buffer size. This vulnerability is referenced as CVE-2025-30334. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenBSD up to 7.5 Errata 014/7.6 Errata 005. Affected by this issue is some unknown processing of the component wg. The manipulation with an unknown input leads to a buffer size vulnerability. Using CWE to declare the problem leads to CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. Impacted is availability. CVE summarizes:

In OpenBSD 7.6 before errata 006 and OpenBSD 7.5 before errata 015, traffic sent over wg(4) could result in kernel crash.

The advisory is available at ftp.openbsd.org. This vulnerability is handled as CVE-2025-30334 since 03/20/2025. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/05/2025).

Upgrading to version 7.5 Errata 015 or 7.6 Errata 006 eliminates this vulnerability.

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

Productinfo

Type

Name

Version

License

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: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (cisa-cg): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / CWE-120 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenBSD 7.5 Errata 015/7.6 Errata 006

Timelineinfo

03/20/2025 🔍
03/20/2025 +0 days 🔍
03/20/2025 +0 days 🔍
09/05/2025 +169 days 🔍

Sourcesinfo

Advisory: ftp.openbsd.org
Status: Confirmed

CVE: CVE-2025-30334 (🔍)
GCVE (CVE): GCVE-0-2025-30334
GCVE (VulDB): GCVE-100-300530

Entryinfo

Created: 03/20/2025 23:24
Updated: 09/05/2025 19:30
Changes: 03/20/2025 23:24 (75), 09/05/2025 19:30 (1)
Complete: 🔍
Cache ID: 216::103

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