How severe is CVE-2026-24883?

CVE-2026-24883 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-24883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24883?

CVE-2026-24883 primarily affects Gnupg. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-24883?

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

Does CVE-2026-24883 have an EU (EUVD) identifier?

Yes. CVE-2026-24883 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4770.

When was CVE-2026-24883 published?

CVE-2026-24883 was published on 2026-01-27 and last updated on 2026-06-17.

CVE-2026-24883

CVE-2026-24883 is a low-severity vulnerability in Gnupg with a CVSS 3.x base score of 3.7. 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-476.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4770
Weakness: CWE-476
Affected product: Gnupg
Published: 2026-01-27
Last modified: 2026-06-17

Description

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

Frequently asked questions

What is CVE-2026-24883?: In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).
How severe is CVE-2026-24883?: CVE-2026-24883 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-24883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24883?: CVE-2026-24883 primarily affects Gnupg. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-24883?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24883 have an EU (EUVD) identifier?: Yes. CVE-2026-24883 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4770.
When was CVE-2026-24883 published?: CVE-2026-24883 was published on 2026-01-27 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
cpe:2.3:a:gpg4win:gpg4win:*:*:*:*:*:*:*:*

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