7.1

CVE-2025-30334: openbsd Incorrect Calculation of Buffer Size

CVSS: 7.1v4.0HighAnalyzed
Published 20-03-2025Last modified 21-03-2025
Open JSON

Vulnerability summary

CVE-2025-30334 is a high (CVSS 7.1) Incorrect Calculation of Buffer Size vulnerability in openbsd. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.3% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.45%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-03-2025
    PublishedVulnerability first disclosed.
  2. 21-03-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

+0.02 pp

From 0.43% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Openbsd1 product
  • openbsdEOL≥ 7.6, < 7.6 errata 006 | ≥ 7.5, < 7.5 errata 015 | < 7.5 | 7.5 | 7.5:errata_001 | 7.5:errata_002 | 7.5:errata_003 | 7.5:errata_004 | 7.5:errata_005 | 7.5:errata_006 | 7.5:errata_007 | 7.5:errata_008 | 7.5:errata_009 | 7.5:errata_010 | 7.5:errata_011 | 7.5:errata_012 | 7.5:errata_013 | 7.5:errata_014 | 7.6 | 7.6:errata_001 | 7.6:errata_002 | 7.6:errata_003 | 7.6:errata_004 | 7.6:errata_005

1 vendor · 1 product

References

3 links