CVE-2026-73296

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 2.6%, top 16% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.4Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, create_mobile_data_collection_server and create_mobile_action_server in ufo/client/mcp/http_servers/mobile_mcp_server.py exposed Streamable HTTP MCP services on TCP ports 8020 and 8021 without authentication, allowing an unauthenticated remote attacker to invoke capture_screenshot, get_ui_tree, tap, swipe, type_text, launch_app, press_key, and click_control against an ADB-connected Android device, disclose screen and device data, and modify device state. This issue is fixed in version 3.0.8.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
73(Attend)
EG Risk 73/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity94% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
84%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 13, 2026

Advisory Details (3)

Auto-updated Aug 29, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

Unauthenticated Mobile MCP access allows remote Android device control and screen disclosure · Advisory · microsoft/UFO · GitHub

https://github.com/microsoft/UFO/security/advisories/GHSA-24fq-m9rr-g3mm
github_release Patch Available

v3.0.8

Patch available: microsoft/UFO v3.0.8

https://github.com/microsoft/UFO/releases/tag/v3.0.8
github_commit Patch Available

commit e562d10060b0 (microsoft/UFO)

Patch available: microsoft/UFO v3.0.8 (contains commit e562d10060b0)

https://github.com/microsoft/UFO/commit/e562d10060b077dedae93e0fd58c1ee379558962

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-08-30 04:37 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-29 08:37 UTCEG score recompute
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-27 15:14 UTCEG score recompute
  6. 2026-08-27 14:25 UTCEPSS rescore
  7. 2026-08-26 18:49 UTCEG score recompute
  8. 2026-08-26 14:47 UTCEPSS rescore
  9. 2026-08-25 17:15 UTCEG score recompute
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-24 17:18 UTCEG score recompute
  12. 2026-08-24 12:50 UTCEG score recompute
  13. 2026-08-23 01:26 UTCEG score recompute
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-22 01:51 UTCEG score recompute
  16. 2026-08-21 23:49 UTCEPSS rescore
  17. 2026-08-21 02:16 UTCEG score recompute
  18. 2026-08-20 22:56 UTCEPSS rescore
  19. 2026-08-19 18:44 UTCEG score recompute
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-18 15:13 UTCEG score recompute
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-17 13:53 UTCEG score recompute
  25. 2026-08-17 13:47 UTCEPSS rescore
Show 14 more
  1. 2026-08-16 18:11 UTCEG score recompute
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 02:28 UTCEG score recompute
  5. 2026-08-16 02:15 UTCEPSS rescore
  6. 2026-08-15 02:49 UTCEG score recompute
  7. 2026-08-15 01:31 UTCEPSS rescore
  8. 2026-08-13 23:20 UTCEG score recompute
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 15:27 UTCEG score recompute
  11. 2026-08-13 14:25 UTCEG score recompute
  12. 2026-08-12 17:35 UTCEG score recompute
  13. 2026-08-12 16:41 UTCEG score recompute
  14. 2026-08-12 16:40 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73296?
CVE-2026-73296 is a critical vulnerability published on August 12, 2026. Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, createmobiledatacollectionserver and createmobileactionserver in ufo/client/mcp/httpservers/mobilemcpserver.py exposed Streamable HTTP MCP services on TCP ports 8020 and 8021 without…
When was CVE-2026-73296 disclosed?
CVE-2026-73296 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73296 actively exploited?
CVE-2026-73296 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 15.8% of all scored CVEs.
What is the CVSS score of CVE-2026-73296?
CVE-2026-73296 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-73296?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73296, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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