Is there a public PoC exploit available for CVE-2025-15503?

Yes, a public proof-of-concept exploit is available for CVE-2025-15503. Prioritise patching immediately. EPSS: 5.5%.

How to fix or mitigate CVE-2025-15503?

Within 7 days: Identify all affected systems running Sangfor Operation and Maintenance Management System and apply vendor patches promptly. Monitor vendor channels for patch availability.

Operation And Maintenance Security Management System CVE-2025-15503

Q: What is the CVSS score of CVE-2025-15503?

CVE-2025-15503 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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: 5.5%.

Q: Which versions of Operation And Maintenance Security Management System are affected by CVE-2025-15503?

Organizations using Sangfor Operation and Maintenance Management System face moderate risk from CVE-2025-15503, a improper access control vulnerability rated CVSS 7.3.

MEDIUM

Improper Access Control (CWE-284)

2026-01-10 cna@vuldb.com

Authentication Bypass File Upload Operation And Maintenance Security Management System Sangfor

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 22, 2026 - 19:47 vuln.today

Public exploit code

CVE Published

Jan 10, 2026 - 09:15 nvd

HIGH 7.3

DescriptionCVE.org

A security flaw has been discovered in Sangfor Operation and Maintenance Management System up to 3.0.8. The impacted element is an unknown function of the file /fort/trust/version/common/common.jsp. Performing a manipulation of the argument File results in unrestricted upload. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Operation And Maintenance Security Management System versions up to 3.0.8. is affected by improper access control (CVSS 7.3).

Technical ContextAI

This vulnerability (CWE-284: Improper Access Control) affects Operation And Maintenance Security Management System. A security flaw has been discovered in Sangfor Operation and Maintenance Management System up to 3.0.8. The impacted element is an unknown function of the file /fort/trust/version/common/common.jsp. Performing a manipulation of the argument File results in unrestricted upload. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.