How severe is CVE-2025-2775?

CVE-2025-2775 has a CVSS score of 9.3/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2025-2775?

Affected package information for CVE-2025-2775 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2025-2775?

No fixed version has been published for CVE-2025-2775 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2025-2775 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2025-2775, including . All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2025-2775?

CVE-2025-2775 has an EPSS (Exploit Prediction Scoring System) score of 69.3%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2025-2775 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2025-2775 (SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2025-07-22. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-08-12. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2025-2775?

CVE-2025-2775 is classified as XML External Entity (XXE) (CWE-611). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2025-2775?

CVE-2025-2775 affects sysaid sysaid. Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2025-2775?

A Nuclei detection template exists for CVE-2025-2775, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2025-2775 published, and has it been updated?

CVE-2025-2775 was published on May 7, 2025 and was last updated on October 27, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2025-07-22 — agencies required to remediate by 2025-08-12

CVE-2025-2775

CRITICAL

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…

Published

May 7, 2025

Updated

Oct 27, 2025

Affected

0 pkgs

Patched

None yet

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

69.3%probability of exploitation in next 30 days

High Risk99th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

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.

Affected Products

1 product · 1 configurations

Application

sysaidsysaid

≤ 23.3.40

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain

PoC for SysAid PreAuth RCE Chain (CVE-2025-2775, CVE-2025-2776, CVE-2025

⭐ 12🍴 6Jan 2026

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2025-2775 in your stack?

O3 detects CVE-2025-2775 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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