---
title: "CVE-2025-2775: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-2775/
description: "CVE-2025-2775 (SysAid SysAid On-Prem): Exploited in the wild (CISA KEV). SysAid On-Prem versions"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-05-07
date_modified: 2025-11-19
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-2775"
kev: true
cvss: 9.3
epss: 0.42612
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-2775: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run SysAid SysAid On-Prem. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-07-22, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-08-12 ; treat that as the outer limit, not the target.
- EPSS 42.6% , percentile 99: FIRST’s model estimates a 42.6% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

SysAid On-Prem versions

## Affected products (CVE record)

- SysAid SysAid On-Prem: <= 23.3.40

## Severity

- VulnCheck CVSS 3.1: 9.3 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L`

## Exploitation

- CISA KEV: added 2025-07-22; federal due date 2025-08-12. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 42.61% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [documentation.sysaid.com](https://documentation.sysaid.com/docs/24-40-60)
- [CVE.org record CVE-2025-2775](https://www.cve.org/CVERecord?id=CVE-2025-2775)
- [NVD entry CVE-2025-2775](https://nvd.nist.gov/vuln/detail/CVE-2025-2775)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2775)
- [labs.watchtowr.com](https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/)

---
Source page: https://erroneo.us/security/cve/CVE-2025-2775/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt