CVE-2017-10918

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 10.0Exploit: NoneExposed: 0

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

Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.

CVSS v3
10.0
EG Score
10.0(medium)
EPSS
88.3%
KEV
Not listed

Published

July 5, 2017

Last Modified

May 13, 2026

Advisory Details (5)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic
http://www.securitytracker.com/id/1038732
generic
http://www.securityfocus.com/bid/99161
generic

[SECURITY] [DSA 3969-1] xen security update

http://www.debian.org/security/2017/dsa-3969
generic

XSA-222 - Xen Security Advisories

https://xenbits.xen.org/xsa/advisory-222.html
generic

Xen: Multiple vulnerabilities (GLSA 201710-17) — Gentoo security

https://security.gentoo.org/glsa/201710-17

Data Freshness Timeline

(refreshed 9× in last 7d / 35× 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. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 02:20 UTCEPSS rescore
  4. 2026-07-05 02:27 UTCEPSS rescore
  5. 2026-07-04 06:28 UTCEPSS rescore
  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-30 23:19 UTCEPSS rescore
  10. 2026-06-29 14:03 UTCEPSS rescore
  11. 2026-06-28 14:04 UTCEPSS rescore
  12. 2026-06-28 04:53 UTCEPSS rescore
  13. 2026-06-27 03:05 UTCEPSS rescore
  14. 2026-06-25 13:47 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-23 21:30 UTCEPSS rescore
  18. 2026-06-21 14:54 UTCEPSS rescore
  19. 2026-06-21 14:54 UTCEPSS rescore
  20. 2026-06-21 01:57 UTCEPSS rescore
  21. 2026-06-21 01:57 UTCEPSS rescore
  22. 2026-06-19 19:23 UTCEPSS rescore
  23. 2026-06-19 19:23 UTCEPSS rescore
  24. 2026-06-19 13:55 UTCOSV refresh
  25. 2026-06-18 17:50 UTCEPSS rescore
Show 59 more
  1. 2026-06-17 17:50 UTCEPSS rescore
  2. 2026-06-16 17:50 UTCEPSS rescore
  3. 2026-06-15 17:45 UTCEPSS rescore
  4. 2026-06-14 23:14 UTCEPSS rescore
  5. 2026-06-14 23:14 UTCEPSS rescore
  6. 2026-06-13 22:57 UTCEPSS rescore
  7. 2026-06-12 23:09 UTCEPSS rescore
  8. 2026-06-11 13:57 UTCEPSS rescore
  9. 2026-06-10 22:15 UTCEPSS rescore
  10. 2026-06-08 14:14 UTCEPSS rescore
  11. 2026-06-07 15:22 UTCEPSS rescore
  12. 2026-06-07 15:22 UTCEPSS rescore
  13. 2026-06-06 13:45 UTCEPSS rescore
  14. 2026-06-06 13:45 UTCEPSS rescore
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-05 06:08 UTCEPSS rescore
  17. 2026-06-05 06:08 UTCEPSS rescore
  18. 2026-06-04 13:10 UTCEPSS rescore
  19. 2026-06-04 13:10 UTCEPSS rescore
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-06-01 13:49 UTCEPSS rescore
  23. 2026-06-01 13:49 UTCEPSS rescore
  24. 2026-05-31 22:28 UTCEPSS rescore
  25. 2026-05-31 00:14 UTCEPSS rescore
  26. 2026-05-30 21:23 UTCOSV refresh
  27. 2026-05-29 13:41 UTCEPSS rescore
  28. 2026-05-28 13:42 UTCEPSS rescore
  29. 2026-05-28 13:42 UTCEPSS rescore
  30. 2026-05-27 13:38 UTCEPSS rescore
  31. 2026-05-27 13:38 UTCEPSS rescore
  32. 2026-05-26 13:42 UTCEPSS rescore
  33. 2026-05-26 13:42 UTCEPSS rescore
  34. 2026-05-22 21:15 UTCEPSS rescore
  35. 2026-05-22 21:15 UTCEPSS rescore
  36. 2026-05-22 21:15 UTCEPSS rescore
  37. 2026-05-20 22:37 UTCEPSS rescore
  38. 2026-05-20 22:37 UTCEPSS rescore
  39. 2026-05-20 11:21 UTCEPSS rescore
  40. 2026-05-20 11:21 UTCEPSS rescore
  41. 2026-05-20 08:36 UTCEG score recompute
  42. 2026-05-20 08:36 UTCGHSA enrichment
  43. 2026-05-20 04:18 UTCEG score recompute
  44. 2026-05-20 04:18 UTCGHSA enrichment
  45. 2026-05-20 00:00 UTCEG score recompute
  46. 2026-05-20 00:00 UTCGHSA enrichment
  47. 2026-05-19 19:42 UTCEG score recompute
  48. 2026-05-19 19:42 UTCGHSA enrichment
  49. 2026-05-19 15:24 UTCEG score recompute
  50. 2026-05-19 15:24 UTCGHSA enrichment
  51. 2026-05-19 11:06 UTCEG score recompute
  52. 2026-05-19 11:05 UTCGHSA enrichment
  53. 2026-05-19 06:46 UTCEG score recompute
  54. 2026-05-19 06:46 UTCGHSA enrichment
  55. 2026-05-19 02:28 UTCEG score recompute
  56. 2026-05-19 02:28 UTCGHSA enrichment
  57. 2026-05-18 22:11 UTCEG score recompute
  58. 2026-05-18 21:30 UTCEPSS rescore
  59. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2017-10918?
CVE-2017-10918 is a critical vulnerability published on July 5, 2017. Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.
When was CVE-2017-10918 disclosed?
CVE-2017-10918 was first published in the National Vulnerability Database on July 5, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-10918 actively exploited?
CVE-2017-10918 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-10918?
CVE-2017-10918 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2017-10918?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-10918, 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.

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