CVE-2025-10263

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM 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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 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(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

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
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 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(8)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhcos-4.22.9.8.202607152026-02026-07-21redhat
redhatkernel-rt-0:4.18.0-553.140.1.rt7.481.el8_102026-07-07redhat
redhatkernel-0:4.18.0-553.140.1.el8_102026-07-07redhat
redhatkernel-0:5.14.0-687.22.1.el9_82026-07-06redhat
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 19× in last 7d / 185× 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 355 total refreshes for this CVE.

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

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 23, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 57.3% of all scored CVEs.
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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