XXE in Sysaid
CVE-2025-2777
SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the lshw processing functionality, allowing for administrator account takeover and file read primitives.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L.
EPSS exploit prediction
EPSS: 0.727 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.722 · newest: 0.727 · change: +0.005
Affected products
- Sysaid
- Sysaid On-Prem — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- documentation.sysaid.com/docs/24-40-60 (vendor-advisory, Release Notes)
- labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2025-2777?
- CVE-2025-2777 is a critical-severity vulnerability in Sysaid, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.3/10. Published 2025-05-07.
- How severe is CVE-2025-2777?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2025-2777 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.