What is the CVSS score of CVE-2025-2775?

CVE-2025-2775 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L. EPSS exploitation probability: 69.8%.

Which versions of Sysaid are affected by CVE-2025-2775?

CVE-2025-2775 presents critical security risk, a XML external entity vulnerability rated CVSS 9.3.

Is there a public PoC exploit available for CVE-2025-2775?

Yes, a public proof-of-concept exploit is available for CVE-2025-2775. Prioritise patching immediately. EPSS: 69.8%.

How to fix or mitigate CVE-2025-2775?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Sysaid CVE-2025-2775

CRITICAL

Improper Restriction of XML External Entity Reference (CWE-611)

2025-05-07 disclosure@vulncheck.com

XXE Sysaid

9.3

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:40 vuln.today

Added to CISA KEV

Oct 27, 2025 - 16:58 cisa

CISA KEV

PoC Detected

Oct 27, 2025 - 16:58 vuln.today

Public exploit code

CVE Published

May 07, 2025 - 15:15 nvd

CRITICAL 9.3

DescriptionNVD

SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Checkin processing functionality, allowing for administrator account takeover and file read primitives.

AnalysisAI

SysAid On-Prem versions through 23.3.40 contain an unauthenticated XXE injection in the Checkin processing, enabling administrator account takeover and file read primitives.

Technical ContextAI

The CWE-611 XXE in the Checkin XML processing endpoint allows injecting external entity references that read local files. Extracted files include configuration with admin credentials or session tokens enabling account takeover.

RemediationAI

Update SysAid. Disable XXE processing in XML parsers. Rotate admin credentials.

CVE-2025-2775 vulnerability details – vuln.today

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Sysaid CVE-2025-2775

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code