CVE-2025-7209

Name: CVE-2025-7209
Creator: NVD / NIST
Published: 2025-07-09T01:15:50.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2025-7209 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability has been found in 9fans plan9port up to 9da5b44 and classified as problematic. Affected by this vulnerability is the function value_decode in the library src/libsec/port/x509.c. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in 9fans plan9port up to 9da5b44 and classified as problematic. Affected by this vulnerability is the function value_decode in the library src/libsec/port/x509.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is deae8939583d83fd798fca97665e0e94656c3ee8. It is recommended to apply a patch to fix this issue.

Metrics

CVSS 3.1

5.5/10

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

CVSS 4.0

1.9/10

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:P/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

EPSS Probability

0.20%

9.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
9fans	Plan9port	<= 2025-03-29

References

https://git.9front.org/plan9front/plan9front/deae8939583d83fd798fca97665e0e94656c3ee8/commit.htmlPatch
https://github.com/9fans/plan9port/issues/711Exploit, Issue Tracking, Patch, Vendor Advisory
https://github.com/9fans/plan9port/issues/711#issuecomment-2819905220Patch
https://github.com/user-attachments/files/19698361/plan9port_crash_2.txtExploit
https://vuldb.com/?ctiid.315157Permissions Required, VDB Entry
https://vuldb.com/?id.315157Third Party Advisory, VDB Entry
https://vuldb.com/?submit.607685Third Party Advisory, VDB Entry

Timeline

Published: Jul 9, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-7209?

How severe is CVE-2025-7209?

CVE-2025-7209 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2025-7209?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-7209?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST