CVE-2025-10263

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — Patch released this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

A fix is available — apply it.

Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76A may allow writes to resources owned by a higher exception level.

CVSS v3
9.1
EG Score
9.1(high)
EPSS
37.6%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 3, 2026

Advisory Details (3)

Auto-updated Jun 9, 2026
No patch confirmed yet.
generic

XSA-493 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-493.html
generic

oss-security - Xen Security Advisory 493 v2 (CVE-2025-10263) - Arm: Completion of memory accesses not guaranteed by completion of a TLBI

http://www.openwall.com/lists/oss-security/2026/06/09/13
generic

Documentation – Arm Developer

https://developer.arm.com/documentation/112137

Vendor Advisories for CVE-2025-10263(5)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:6.12.0-211.30.1.el10_22026-07-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 87× in last 7d / 380× 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 380 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2025-10263?
CVE-2025-10263 is a critical vulnerability published on June 9, 2026. Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76A may allow writes to resources owned by a higher exception level.
When was CVE-2025-10263 disclosed?
CVE-2025-10263 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-10263 actively exploited?
CVE-2025-10263 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-10263?
CVE-2025-10263 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-10263?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-10263, 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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