How severe is CVE-2025-30258?

CVE-2025-30258 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-30258 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-30258?

CVE-2025-30258 affects Gnupg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-30258?

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

Does CVE-2025-30258 have an EU (EUVD) identifier?

Yes. CVE-2025-30258 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6762.

When was CVE-2025-30258 published?

CVE-2025-30258 was published on 2025-03-19 and last updated on 2026-06-17.

CVE-2025-30258

CVE-2025-30258 is a low-severity vulnerability in Gnupg with a CVSS 3.x base score of 2.7. 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-754.

Key facts

Severity: Low (CVSS 3.x base score 2.7)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6762
Weakness: CWE-754
Affected product: Gnupg
Published: 2025-03-19
Last modified: 2026-06-17

Description

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

Frequently asked questions

What is CVE-2025-30258?: In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."
How severe is CVE-2025-30258?: CVE-2025-30258 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-30258 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-30258?: CVE-2025-30258 affects Gnupg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-30258?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30258 have an EU (EUVD) identifier?: Yes. CVE-2025-30258 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6762.
When was CVE-2025-30258 published?: CVE-2025-30258 was published on 2025-03-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*

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