What is CVE-2025-13566?

CVE-2025-13566 is a low-severity vulnerability in Jarun Nnn, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2025-11-23.

How severe is CVE-2025-13566?

Low severity. CVSS v3 base score is 3.3 out of 10.

Buffer overflow in Jarun Nnn

CVE-2025-13566

A security vulnerability has been detected in jarun nnn up to 5.1. The impacted element is the function show_content_in_floating_window/run_cmd_as_plugin of the file nnn/src/nnn.c. The manipulation leads to double free. An attack has to be approached locally. The identifier of the patch is 2f07ccdf21e705377862e5f9dfa31e1694979ac7. It is suggested to install a patch to address this issue.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Jarun Nnn — versions 5.0, 5.1

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (patch)

Frequently asked questions

What is CVE-2025-13566?: CVE-2025-13566 is a low-severity vulnerability in Jarun Nnn, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2025-11-23.
How severe is CVE-2025-13566?: Low severity. CVSS v3 base score is 3.3 out of 10.