CVE-2025-60020Network attack vector

Authenticated file read and overwrite via packet paths

Published Sep 24, 2025 · Updated Sep 24, 2025

Path traversal in NNCP before 8.12.0 allows remote authenticated users to read or overwrite files via crafted packet paths. Freq and file packet handlers use attacker-supplied relative paths without confining the resolved target to the configured freq or incoming directory. Packets must come from a configured peer whose authenticated traffic is accepted; impact is limited to files reachable by the NNCP process.

CVSS severity6.4
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in NNCP before 8.12.0 allows remote authenticated users to read or overwrite files via crafted packet paths. Freq and file packet handlers use attacker-supplied relative paths without confining the resolved target to the configured freq or incoming directory. Packets must come from a configured peer whose authenticated traffic is accepted; impact is limited to files reachable by the NNCP process.

The record

CVE
CVE-2025-60020
Published
Sep 24, 2025
Updated
Sep 24, 2025
Vendor
NNCP
Product
NNCP
Classifications
CWE-23, T1005, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <8.12.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NNCP · NNCPversion=0 <8.12.0

Published CVSS scores

6.4MITRE CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1005Data from Local System
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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