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CVE-2026-41989

Published: Apr 23, 2026Updated: Apr 27, 2026 Sources: CVE List NVD BDUCWE-787
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.2%
Top 92.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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

CVSS Vector Breakdown

AV:LAC:HPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

LibgcryptWerner Koch
Library
OSS Libraries / generic-library
libgcryptgnupg
Library
Security Products / pki-crypto
Libgcryptgnupg
Library
Security Products / pki-crypto
werner kochoss-projectDEOSS Libraries
gnupgoss-projectSecurity Productsaka libgcrypt, libksba

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html
lists.gnupg.org
https://dev.gnupg.org/T8211.htm
dev.gnupg.org
https://www.openwall.com/lists/oss-security/2026/04/21/1
openwall.com
and 1 more references View all →

Timeline

Published
Apr 23, 2026
Last Updated
Apr 27, 2026

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