How severe is CVE-2025-30334?

CVE-2025-30334 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-30334 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-30334?

CVE-2025-30334 primarily affects Openbsd. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-30334?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-30334 have an EU (EUVD) identifier?

Yes. CVE-2025-30334 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7144.

When was CVE-2025-30334 published?

CVE-2025-30334 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2025-30334

CVE-2025-30334 is a medium-severity vulnerability in Openbsd with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-131.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7144
Weakness: CWE-131
Affected product: Openbsd
Published: 2025-03-20
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-30334?: In OpenBSD 7.6 before errata 006 and OpenBSD 7.5 before errata 015, traffic sent over wg(4) could result in kernel crash.
How severe is CVE-2025-30334?: CVE-2025-30334 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-30334 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-30334?: CVE-2025-30334 primarily affects Openbsd. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-30334?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30334 have an EU (EUVD) identifier?: Yes. CVE-2025-30334 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7144.
When was CVE-2025-30334 published?: CVE-2025-30334 was published on 2025-03-20 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:-:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_001:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_002:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_003:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_004:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_005:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_006:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_007:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_008:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_009:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_010:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_011:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_012:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_013:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.5:errata_014:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:-:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:errata_001:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:errata_002:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:errata_003:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:errata_004:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.6:errata_005:*:*:*:*:*:*

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