Is there a public PoC exploit available for EUVD-2025-20766?

Yes, a public proof-of-concept exploit is available for EUVD-2025-20766. Prioritise patching immediately. EPSS: 0.1%.

Is there a patch available for EUVD-2025-20766?

Yes, a patch is available for EUVD-2025-20766. Update the affected software to the latest version immediately.

Plan9port EUVD-2025-20766

Q: What is the CVSS score of EUVD-2025-20766?

EUVD-2025-20766 has a CVSS 4.0 base score of 2.0 (Low). CVSS vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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 exploitation probability: 0.1%.

| CVE-2025-7208 LOW

Buffer Overflow (CWE-119)

2025-07-09 cna@vuldb.com

Buffer Overflow Plan9port

2.0

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.0 LOW

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.5 (MEDIUM) 2.0 (LOW)

EUVD ID Assigned

Mar 16, 2026 - 06:20 euvd

EUVD-2025-20766

Analysis Generated

Mar 16, 2026 - 06:20 vuln.today

Patch released

Mar 16, 2026 - 06:20 nvd

Patch available

PoC Detected

Feb 02, 2026 - 16:02 vuln.today

Public exploit code

CVE Published

Jul 09, 2025 - 01:15 cve.org

LOW 2.0

CVE Published

Jul 09, 2025 - 01:15 nvd

MEDIUM 5.5

DescriptionCVE.org

A vulnerability was found in 9fans plan9port up to 9da5b44. It has been classified as critical. This affects the function edump in the library /src/plan9port/src/libsec/port/x509.c. The manipulation leads to heap-based buffer overflow. 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 b3e06559475b0130a7a2fb56ac4d131d13d2012f. It is recommended to apply a patch to fix this issue.

AnalysisAI

Heap-based buffer overflow in plan9port's x509 certificate parsing library allows adjacent network attackers with low privileges to potentially execute arbitrary code or crash the service. Exploit code is publicly available, but no active exploitation has been confirmed (not listed in CISA KEV).