CVE-2025-65409

HIGH

Published Dec 30, 2025 Modified Jan 9, 2026 CWE-369

Description

A divide-by-zero in the encryption/decryption routines of GNU Recutils v1.9 allows attackers to cause a Denial of Service (DoS) via inputting an empty value as a password.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-369 CWE-369

Affected Products

Vendor	Product	Versions
gnu	recutils	All

References

Advisories & Patches

https://lists.gnu.org/archive/html/bug-recutils/2025-10/msg00004.html

Exploits

https://github.com/MAXEUR5/Vulnerability_Disclosures/blob/main/2025/CVE-2025-65409.md https://github.com/MAXEUR5/Vulnerability_Disclosures/blob/main/2025/CVE-2025-65409.md

Other References

http://ftp.gnu.org/gnu/recutils/ https://www.gnu.org/software/recutils/

Frequently Asked Questions

What is CVE-2025-65409? +

A divide-by-zero in the encryption/decryption routines of GNU Recutils v1.9 allows attackers to cause a Denial of Service (DoS) via inputting an empty value as a password. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-65409? +

CVE-2025-65409 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-65409? +

CVE-2025-65409 affects products from gnu, specifically: recutils. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-65409? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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