CVE-2025-13566

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.3% of scored records. A rank, not a probability.

NVD base score

4.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-11-23 19:32Z9 MO AGO

Last updated

2025-11-24 21:20Z9 MO AGO

Reserved

2025-11-22

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-415Double FreeVariant

Data version

5.2

Document digest

c3a8810ea69d3cfe0aab53f3a537cb94feb26557ebb76a3e1ab0b7c7bf87099e

• vuldb.comVDB-333330 | jarun nnn nnn.c run_cmd_as_plugin double freehttps://vuldb.com/?id.333330vdb-entrytechnical-description
• vuldb.comVDB-333330 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.333330signaturepermissions-required
• vuldb.comSubmit #698113 | nnn v5.1 Double Freehttps://vuldb.com/?submit.698113third-party-advisory
• github.comhttps://github.com/jarun/nnn/issues/2091#issue-3635886658issue-tracking
• github.comhttps://github.com/jarun/nnn/issues/2091#issuecomment-3547591759issue-tracking
• github.comhttps://github.com/jarun/nnn/commit/2f07ccdf21e705377862e5f9dfa31e1694979ac7patch