What is CVE-2026-41565?

CVE-2026-41565 is a high-severity vulnerability in Mik Cryptx, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-05-28.

How severe is CVE-2026-41565?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Mik Cryptx

CVE-2026-41565

CryptX versions before 0.088_001 for Perl have a stack buffer overflow in four AEAD decrypt_verify helpers. The gcm_decrypt_verify, ccm_decrypt_verify, chacha20poly1305_decrypt_verify and eax_decrypt_verify XS routines copied the caller-s…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (28.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mik Cryptx — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-41565?: CVE-2026-41565 is a high-severity vulnerability in Mik Cryptx, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-05-28.
How severe is CVE-2026-41565?: High severity. CVSS v3 base score is 7.5 out of 10.