CVE-2025-2775
KEVSysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability
Description
SysAid On-Prem contains an improper restriction of XML external entity reference vulnerability in the Checkin processing functionality, allowing for administrator account takeover and file read primitives.
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.
CVSS 3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:LPublishedMay 7, 2025
Last modifiedJun 17, 2026
Added to KEVJul 22, 2025
Remediation dueAug 12, 2025
References
- documentation.sysaid.com/docs/24-40-60Release Notes
- labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ExploitThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2775US Government Resource
0 recent articles mention this CVE
81
Risk assessment · Critical
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 440 days
- CVSS
- 9.3 CRITICAL
- EPSS (30-day exploit probability)
- 42.6% · top 1% of all CVEs
- Weakness
- CWE-611
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.