CVE-2025-54518

HIGHPre-NVD 7.07.3▲
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 80% 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, nvd
7.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.0Exploit: NoneExposed: 0

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

Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.

CVSS v3
7.0
EG Score
7.3(medium)
EPSS
17.1%
KEV
Not listed

Published

May 15, 2026

Last Modified

June 30, 2026

Advisory Details (2)

Auto-updated May 15, 2026
No patch confirmed yet.
generic

XSA-490 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-490.html
generic

oss-security - Xen Security Advisory 490 v1 (CVE-2025-54518) - x86: CPU Opcode Cache corruption

http://www.openwall.com/lists/oss-security/2026/05/12/15

Vendor Advisories for CVE-2025-54518(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 118× 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.

Showing the most recent 100 of 206 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 06:30 UTCEPSS rescore
  7. 2026-07-02 17:01 UTCEPSS rescore
  8. 2026-07-01 15:06 UTCEPSS rescore
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 04:33 UTCNVD updateCVSS v3 → 7
  11. 2026-06-29 21:34 UTCEG score recompute
  12. 2026-06-29 21:34 UTCVendor advisory
  13. 2026-06-29 21:34 UTCGHSA enrichment
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 14:07 UTCEPSS rescore
  18. 2026-06-28 11:02 UTCEG score recompute
  19. 2026-06-28 11:02 UTCVendor advisory
  20. 2026-06-28 11:01 UTCGHSA enrichment
  21. 2026-06-28 04:55 UTCEPSS rescore
  22. 2026-06-27 22:18 UTCEG score recompute
  23. 2026-06-27 22:18 UTCVendor advisory
  24. 2026-06-27 22:18 UTCGHSA enrichment
  25. 2026-06-27 08:30 UTCEG score recompute
Show 75 more
  1. 2026-06-27 08:30 UTCVendor advisory
  2. 2026-06-27 08:30 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-26 20:14 UTCEG score recompute
  6. 2026-06-26 20:14 UTCVendor advisory
  7. 2026-06-26 20:14 UTCGHSA enrichment
  8. 2026-06-25 18:56 UTCEG score recompute
  9. 2026-06-25 18:56 UTCVendor advisory
  10. 2026-06-25 18:56 UTCGHSA enrichment
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-24 14:04 UTCEPSS rescore
  13. 2026-06-24 14:04 UTCEPSS rescore
  14. 2026-06-23 21:32 UTCEPSS rescore
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-21 14:56 UTCEPSS rescore
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 01:59 UTCEPSS rescore
  19. 2026-06-21 01:59 UTCEPSS rescore
  20. 2026-06-19 19:25 UTCEPSS rescore
  21. 2026-06-19 19:25 UTCEPSS rescore
  22. 2026-06-18 17:52 UTCEPSS rescore
  23. 2026-06-18 17:52 UTCEPSS rescore
  24. 2026-06-18 04:11 UTCEG score recompute
  25. 2026-06-18 04:11 UTCGHSA enrichment
  26. 2026-06-17 17:52 UTCEPSS rescore
  27. 2026-06-17 13:33 UTCEG score recompute
  28. 2026-06-17 13:33 UTCGHSA enrichment
  29. 2026-06-17 00:22 UTCEG score recompute
  30. 2026-06-17 00:22 UTCGHSA enrichment
  31. 2026-06-16 17:52 UTCEPSS rescore
  32. 2026-06-16 17:52 UTCEPSS rescore
  33. 2026-06-16 11:55 UTCEG score recompute
  34. 2026-06-16 11:55 UTCVendor advisory
  35. 2026-06-16 11:55 UTCGHSA enrichment
  36. 2026-06-15 23:38 UTCEG score recompute
  37. 2026-06-15 23:38 UTCVendor advisory
  38. 2026-06-15 23:38 UTCGHSA enrichment
  39. 2026-06-15 17:48 UTCEPSS rescore
  40. 2026-06-14 23:55 UTCEG score recompute
  41. 2026-06-14 23:55 UTCVendor advisory
  42. 2026-06-14 23:55 UTCGHSA enrichment
  43. 2026-06-14 23:17 UTCEPSS rescore
  44. 2026-06-14 11:36 UTCEG score recompute
  45. 2026-06-14 11:36 UTCVendor advisory
  46. 2026-06-14 11:36 UTCGHSA enrichment
  47. 2026-06-13 23:21 UTCEG score recompute
  48. 2026-06-13 23:21 UTCVendor advisory
  49. 2026-06-13 23:21 UTCGHSA enrichment
  50. 2026-06-13 23:00 UTCEPSS rescore
  51. 2026-06-12 23:49 UTCEG score recompute
  52. 2026-06-12 23:49 UTCVendor advisory
  53. 2026-06-12 23:49 UTCGHSA enrichment
  54. 2026-06-12 23:11 UTCEPSS rescore
  55. 2026-06-12 11:32 UTCEG score recompute
  56. 2026-06-12 11:32 UTCVendor advisory
  57. 2026-06-12 11:32 UTCGHSA enrichment
  58. 2026-06-11 23:14 UTCEG score recompute
  59. 2026-06-11 23:14 UTCVendor advisory
  60. 2026-06-11 23:14 UTCGHSA enrichment
  61. 2026-06-11 14:00 UTCEPSS rescore
  62. 2026-06-11 14:00 UTCEPSS rescore
  63. 2026-06-11 10:59 UTCEG score recompute
  64. 2026-06-11 10:59 UTCVendor advisory
  65. 2026-06-11 10:59 UTCGHSA enrichment
  66. 2026-06-10 22:42 UTCEG score recompute
  67. 2026-06-10 22:42 UTCGHSA enrichment
  68. 2026-06-10 22:18 UTCEPSS rescore
  69. 2026-06-10 22:18 UTCEPSS rescore
  70. 2026-06-10 13:22 UTCEPSS rescore
  71. 2026-06-10 13:22 UTCEPSS rescore
  72. 2026-06-10 10:27 UTCEG score recompute
  73. 2026-06-10 10:27 UTCVendor advisory
  74. 2026-06-10 10:27 UTCGHSA enrichment
  75. 2026-06-09 22:11 UTCEG score recompute

Frequently asked(5)

What is CVE-2025-54518?
CVE-2025-54518 is a high vulnerability published on May 15, 2026. Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.
When was CVE-2025-54518 disclosed?
CVE-2025-54518 was first published in the National Vulnerability Database on May 15, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-54518 actively exploited?
CVE-2025-54518 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-54518?
CVE-2025-54518 has a CVSS v3 base score of 7.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.3.
How do I remediate CVE-2025-54518?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-54518, 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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