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.
CVE-2025-2775
“—” beside the score: it is equal to NVD's CVSS score.
Score elevated to 9.3 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-07-22), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.3 retained for reference. Confidence: HIGH.
Also known asEUVD-2025-13878 (ENISA EUVD) · GHSA-g3m4-2wr6-2q64 (GitHub Security Advisories)Source: ENISA EUVD
- Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
The CVE record's CNA (VulnCheck) lists SysAid On-Prem versions up to and including 23.3.40 as affected. No release containing a fix is confirmed on record.
- CVSS v3
- 9.3
- EG Score
- 9.3CRITICALhigh confidence
- EG Risk
- 97EG Risk 97/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity93% × 45%Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation100% × 40%Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Attend at low or medium mission impact; Act at high (mission-essential systems).Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low or medium mission impact and as soon as possible at high. - EPSS PROB
- 43%
- EPSS %ILE
- 98th
- KEV
- ⚠ Exploited
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 43% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Attend at medium mission impactAttend at low or medium mission impact; Act at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 14 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Attend at low or medium mission impact; Act at high (mission-essential systems).
No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low or medium mission impact and as soon as possible at high.
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 14 days if it is not.
No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.
The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
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.”
Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://documentation.sysaid.com/docs/24-40-60 · https://nvd.nist.gov/vuln/detail/CVE-2025-2775
Published
May 7, 2025
Last Modified
October 27, 2025
Advisory Details (3)
Auto-updated Nov 2, 2026Known Exploited Vulnerabilities Catalog | CISA
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2775SysOwned, Your Friendly Support Ticket - SysAid On-Premise Pre-Auth RCE Chain (CVE-2025-2775 And Friends)
https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 17× in last 7d / 129× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 1,139 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,039 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-02 02:07 UTCEG score recompute
- 2026-11-02 02:07 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-31 23:56 UTCEG score recompute
- 2026-10-31 23:56 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-30 21:45 UTCEG score recompute
- 2026-10-30 21:45 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-30 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-29 19:35 UTCEG score recompute
- 2026-10-29 19:35 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-29 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-28 17:25 UTCEG score recompute
- 2026-10-28 17:24 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-27 15:12 UTCEG score recompute
- 2026-10-27 15:12 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-26 12:59 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-25 16:38 UTCEG score recompute
- 2026-10-25 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-25 10:46 UTCEG score recompute
- 2026-10-25 10:46 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-24 08:36 UTCEG score recompute
- 2026-10-24 08:36 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
Show 75 moreShow fewer
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-23 06:25 UTCEG score recompute
- 2026-10-23 06:25 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-22 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-22 04:14 UTCEG score recompute
- 2026-10-22 04:13 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-21 02:01 UTCEG score recompute
- 2026-10-21 02:01 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-19 23:51 UTCEG score recompute
- 2026-10-19 23:51 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-19 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-18 21:39 UTCEG score recompute
- 2026-10-18 21:38 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-18 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-18 05:41 UTCEG score recompute
- 2026-10-17 19:27 UTCEG score recompute
- 2026-10-17 19:27 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-17 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-16 17:17 UTCEG score recompute
- 2026-10-16 17:16 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-16 16:38 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-15 16:30 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-15 15:02 UTCEG score recompute
- 2026-10-15 15:01 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-14 12:50 UTCEG score recompute
- 2026-10-14 12:50 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-13 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-13 10:37 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-12 17:14 UTCEG score recompute
- 2026-10-12 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-12 08:22 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-12 04:27 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-12 00:36 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 20:43 UTCEG score recompute
- 2026-10-11 20:43 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 16:50 UTCEG score recompute
- 2026-10-11 16:50 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 15:34 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-11 13:00 UTCEG score recompute
- 2026-10-11 12:59 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 09:07 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 05:15 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-11 01:23 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 21:33 UTCEG score recompute
- 2026-10-10 21:32 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-10 17:39 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 13:48 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 09:57 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 06:06 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-10 02:14 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 22:22 UTCEG score recompute
- 2026-10-09 22:22 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-09 18:32 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 14:39 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 10:48 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 06:56 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-09 03:03 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 23:12 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 19:22 UTCEG score recompute
- 2026-10-08 19:21 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 17:09 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-08 15:31 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 11:39 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 07:48 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 03:57 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-08 00:05 UTCEG score recompute
- 2026-10-08 00:05 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 43% · 98th percentile
- 2026-10-07 20:14 UTCGHSA enrichmentGHSA-g3m4-2wr6-2q64 · GitHub severity CRITICAL · GitHub CVSS 9.3
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (1 GitHub PoC), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.
- Nucleihttp/cves/2025/CVE-2025-2775.yamlPublished May 10, 2025
SysAid On-Prem <= 23.3.40 - XML External Entity
Open source ↗ - GitHub PoCwatchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-ChainPublished Mar 28, 2025
PoC for SysAid PreAuth RCE Chain (CVE-2025-2775, CVE-2025-2776, CVE-2025-2777, CVE-2025-2778)
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-611
Frequently asked(6)
What is CVE-2025-2775?
When was the CVE record for CVE-2025-2775 published?
Is CVE-2025-2775 actively exploited?
What is the CVSS score of CVE-2025-2775?
Which products are affected by CVE-2025-2775?
How do I remediate CVE-2025-2775?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-2775
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