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Vulnerabilities

Vulnerability · CVE-2026-41989

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

Published Apr 23, 2026 · catalog updated Oct 15, 2026 · Libgcrypt before 1.12.2 sometimes

Check if you run it

No confirmed exploitation is on record for CVE-2026-41989. EPSS is 0.19%. Act only if a listed version of Libgcrypt before 1.12.2 sometimes is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Libgcrypt before 1.12.2 sometimes).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
cpe gnupg/libgcrypt

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe gnupg/libgcryptversion unspecified

How to fix CVE-2026-41989

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41989. EPSS is 0.19%. Act only if a listed version of Libgcrypt before 1.12.2 sometimes is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-787: Out-of-bounds Write. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 23, 2026 · NIST NVD

    Detected

    Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

  2. Oct 15, 2026 · NIST NVD

    Updated

    Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

Sources

  • CVE.orgVulnerability recordCVE-2026-41989

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41989

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41989

    Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.