CVE-2025-2777

CRITICALNVD 9.39.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2025-05-07. NVD baseline CVSS 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Weaponized

Also known asEUVD-2025-13877 (ENISA EUVD) · GHSA-hxv5-fpm3-vhqh (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 73%
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 73%CVSS: 9.3Exploit: No code on recordExposed services: Not assessed

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.

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.

CVSS v3
9.3
EG Score
9.3CRITICALmedium confidence
EG Risk
86
EG Risk 86/100

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.
Exploitation73% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (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 with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
73%
EPSS %ILE
99th
KEV
Not listed

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
73% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 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: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.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)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (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)14 days if the affected system is publicly exposed; 60 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: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (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

Published

May 7, 2025

Last Modified

June 27, 2025

Advisory Details (1)

Auto-updated Sep 15, 2026
No fix on record yet.
Web page

SysOwned, 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 10× in last 7d / 48× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 193 rows on record for this CVE, as 99 entries (1 repeat merged).

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. 1 repeat row among the latest 100 is merged into the row it repeats. The 93 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 06:17 UTCEchelonGraph re-scored
  2. 2026-11-13 06:17 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  3. 2026-11-12 07:43 UTCEchelonGraph re-scored
  4. 2026-11-12 07:43 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  5. 2026-11-11 16:36 UTCEPSS rescoreEPSS 73% · 99th percentile
  6. 2026-11-11 09:10 UTCEchelonGraph re-scored
  7. 2026-11-11 09:10 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  8. 2026-11-10 10:36 UTCEchelonGraph re-scored
  9. 2026-11-10 10:36 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  10. 2026-11-09 12:03 UTCEchelonGraph re-scored
  11. 2026-11-09 12:03 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  12. 2026-11-08 13:31 UTCEchelonGraph re-scored
  13. 2026-11-08 13:31 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  14. 2026-11-07 16:36 UTCEPSS rescoreEPSS 73% · 99th percentile
  15. 2026-11-07 14:57 UTCEchelonGraph re-scored
  16. 2026-11-07 14:57 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  17. 2026-11-06 16:24 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  18. 2026-11-05 17:51 UTCEchelonGraph re-scored
  19. 2026-11-05 17:51 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  20. 2026-11-05 16:35 UTCEPSS rescoreEPSS 73% · 99th percentile
  21. 2026-11-04 19:18 UTCEchelonGraph re-scored
  22. 2026-11-04 19:18 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  23. 2026-11-04 16:33 UTCEPSS rescoreEPSS 73% · 99th percentile
  24. 2026-11-03 20:45 UTCEchelonGraph re-scored
  25. 2026-11-03 20:45 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
Show 74 more
  1. 2026-11-03 16:44 UTCEPSS rescoreEPSS 73% · 99th percentile
  2. 2026-11-02 22:12 UTCEchelonGraph re-scored
  3. 2026-11-02 22:12 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  4. 2026-11-01 23:34 UTCEchelonGraph re-scored
  5. 2026-11-01 23:34 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  6. 2026-11-01 01:01 UTCEchelonGraph re-scored
  7. 2026-11-01 01:01 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  8. 2026-10-31 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  9. 2026-10-31 02:28 UTCEchelonGraph re-scored
  10. 2026-10-31 02:28 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  11. 2026-10-30 16:32 UTCEPSS rescoreEPSS 73% · 99th percentile
  12. 2026-10-30 03:55 UTCEchelonGraph re-scored
  13. 2026-10-30 03:55 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  14. 2026-10-29 05:22 UTCEchelonGraph re-scored
  15. 2026-10-29 05:22 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  16. 2026-10-28 06:49 UTCEchelonGraph re-scored
  17. 2026-10-28 06:49 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  18. 2026-10-27 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  19. 2026-10-27 08:16 UTCEchelonGraph re-scored
  20. 2026-10-27 08:16 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  21. 2026-10-26 16:29 UTCEPSS rescoreEPSS 73% · 99th percentile
  22. 2026-10-26 07:27 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  23. 2026-10-25 16:38 UTCEchelonGraph re-scored
  24. 2026-10-25 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  25. 2026-10-25 08:55 UTCEchelonGraph re-scored
  26. 2026-10-25 08:55 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  27. 2026-10-24 10:22 UTCEchelonGraph re-scored
  28. 2026-10-24 10:22 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  29. 2026-10-23 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  30. 2026-10-23 11:48 UTCEchelonGraph re-scored
  31. 2026-10-23 11:48 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  32. 2026-10-22 16:32 UTCEPSS rescoreEPSS 73% · 99th percentile
  33. 2026-10-22 13:13 UTCEchelonGraph re-scored
  34. 2026-10-22 13:13 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  35. 2026-10-21 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  36. 2026-10-21 14:39 UTCEchelonGraph re-scored
  37. 2026-10-21 14:39 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  38. 2026-10-20 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  39. 2026-10-20 15:17 UTCEchelonGraph re-scored
  40. 2026-10-20 15:17 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  41. 2026-10-19 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  42. 2026-10-19 15:46 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  43. 2026-10-18 17:13 UTCEchelonGraph re-scored
  44. 2026-10-18 17:13 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  45. 2026-10-18 05:41 UTCEchelonGraph re-scored
  46. 2026-10-17 18:38 UTCEchelonGraph re-scored
  47. 2026-10-17 18:38 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  48. 2026-10-16 20:04 UTCEchelonGraph re-scored
  49. 2026-10-16 20:03 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  50. 2026-10-15 17:39 UTCEchelonGraph re-scored
  51. 2026-10-15 17:38 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  52. 2026-10-15 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  53. 2026-10-14 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  54. 2026-10-14 11:26 UTCEchelonGraph re-scored
  55. 2026-10-14 11:25 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  56. 2026-10-13 16:32 UTCEPSS rescoreEPSS 72% · 99th percentile
  57. 2026-10-13 10:25 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  58. 2026-10-12 17:14 UTCEchelonGraph re-scored
  59. 2026-10-12 11:48 UTCGHSA enrichmentGHSA-hxv5-fpm3-vhqh · GitHub severity CRITICAL · GitHub CVSS 9.3
  60. 2026-10-11 20:46 UTCEchelonGraph re-scored
  61. 2026-10-11 18:56 UTCEchelonGraph re-scored
  62. 2026-10-11 15:34 UTCEchelonGraph re-scored
  63. 2026-10-11 13:47 UTCEPSS rescoreEPSS 72% · 99th percentile
  64. 2026-10-09 20:06 UTCEPSS rescoreEPSS 72% · 99th percentile
  65. 2026-10-06 15:16 UTCEPSS rescoreEPSS 72% · 99th percentile
  66. 2026-10-05 17:42 UTCEPSS rescoreEPSS 72% · 99th percentile
  67. 2026-10-04 23:21 UTCEPSS rescoreEPSS 72% · 99th percentile
  68. 2026-10-03 14:24 UTCEPSS rescoreEPSS 72% · 99th percentile
  69. 2026-10-01 19:49 UTCEPSS rescoreEPSS 72% · 99th percentile
  70. 2026-09-26 15:58 UTCEPSS rescoreEPSS 72% · 99th percentile
  71. 2026-09-24 14:02 UTCEPSS rescoreEPSS 72% · 99th percentile
  72. 2026-09-23 13:47 UTCEPSS rescoreEPSS 72% · 99th percentile
  73. 2026-09-20 20:15 UTCEPSS rescoreEPSS 72% · 99th percentile
  74. 2026-09-18 19:27 UTCEPSS rescoreEPSS 72% · 99th percentile

Public detection templates

(1 reference)

A public Nuclei detection template is referenced for this CVE. A detection template checks whether a system is affected; it is not necessarily exploit code.

  • Nucleihttp/cves/2025/CVE-2025-2777.yaml
    Published May 10, 2025

    SysAid On-Prem <= 23.3.40 - XML External Entity

    Open source ↗

Frequently asked(5)

What is CVE-2025-2777?
CVE-2025-2777 is a critical-severity vulnerability; its CVE record was published on May 7, 2025. 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.
When was the CVE record for CVE-2025-2777 published?
The CVE record for CVE-2025-2777 was published on May 7, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 27, 2025; the record at its source may have been updated since.
Is CVE-2025-2777 actively exploited?
CVE-2025-2777 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: CISA's SSVC data says a public PoC exists and its EPSS is 50% or more. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 73% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-2777?
CVE-2025-2777 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2025-2777?
No fix for CVE-2025-2777 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2025-2777

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