CVE-2025-7209

low-risk
Published 2025-07-09

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.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Plan9Port

Affected Vendors

9Fans

References (7)

Patch https://git.9front.org/plan9front/plan9front/deae8939583d83fd798fca97665e0e94656...
Exploit https://github.com/9fans/plan9port/issues/711
Patch https://github.com/9fans/plan9port/issues/711#issuecomment-2819905220
Exploit https://github.com/user-attachments/files/19698361/plan9port_crash_2.txt
Permissions Required https://vuldb.com/?ctiid.315157
Third Party Advisory https://vuldb.com/?id.315157
Third Party Advisory https://vuldb.com/?submit.607685
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal