Is CVE-2026-41989 in the CISA KEV catalog?

No. CVE-2026-41989 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-41989?

CVE-2026-41989 has a CVSS v3 base score of 4.0 (Low).

What is the EPSS score for CVE-2026-41989?

CVE-2026-41989 has an EPSS score of 0.18% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-41989?

Upgrade libgcrypt20 on debian 12 to 1.10.1-3+deb12u1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-41989

LOW

4.0

CVSS v3

NVD

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.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

libgcrypt20Debian

Fixed in:1.10.1-3+deb12u1CVE-2026-41989

Fixed in:1.11.0-7+deb13u1CVE-2026-41989

Fixed in:1.12.2-1CVE-2026-41989

libgcrypt20Ubuntu

Fixed in:1.9.4-3ubuntu3.2USN-8319-1

Fixed in:1.10.3-2ubuntu0.1USN-8319-1

Fixed in:1.11.0-7ubuntu0.1USN-8319-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:U

Exploit Intelligence

0.18%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Third-Party Advisory2

Other references1

dev.gnupg.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-27.