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 — 4 sources updated 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
46%
KEV
Not listed

Published

June 9, 2026

Last Modified

September 4, 2026

Advisory Details (11)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:49031
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:47248
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:40764
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:36349
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:36348
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:36018
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:34911
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
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2025-10263

Vendor Advisories for CVE-2025-10263(20)

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

Patch Availability(26)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-14ubuntu
redhatrhcos-417.94.202608250221-02026-09-03redhat
redhatrhcos-415.92.202608180329-02026-08-31redhat
redhatrhcos-414.92.202608172040-02026-08-31redhat
redhatrhcos-416.94.202608150307-02026-08-31redhat
redhatrhcos-412.86.202608080425-02026-08-20redhat
redhatrhcos-413.92.202608111330-02026-08-20redhat
redhatrhcos-418.94.202608111829-02026-08-19redhat
redhatrhcos-4.19.9.6.202608120446-02026-08-19redhat
redhatrhcos-4.21.9.6.202608122143-02026-08-18redhat
redhatrhcos-4.20.9.6.202608121719-02026-08-18redhat
redhatkernel-0:6.12.0-55.98.1.el10_02026-08-17redhat
redhatkernel-0:4.18.0-477.158.1.el8_82026-08-10redhat
redhatkernel-0:5.14.0-284.186.1.el9_22026-08-07redhat
redhatkernel-0:5.14.0-427.143.1.el9_42026-08-07redhat
redhatkernel-rt-0:5.14.0-284.186.1.rt14.471.el9_22026-08-07redhat
redhatkernel-0:5.14.0-570.131.1.el9_62026-07-31redhat
redhatkernel-0:4.18.0-372.204.1.el8_62026-07-31redhat
redhatkernel-0:4.18.0-305.200.1.el8_42026-07-28redhat
redhatrhcos-4.22.9.8.202607152026-02026-07-21redhat
redhatkernel-0:4.18.0-553.140.1.el8_102026-07-07redhat
redhatkernel-rt-0:4.18.0-553.140.1.rt7.481.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.

Affected Packages

(14 across 9 ecosystems)
Debian:11(3)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
xen4.14.2+25-gb6a8c4f72d-2 ... 4.20.3+127-gc42374a105-1 (46 versions)——
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
xen4.17.1+2-gb773c48e36-1 ... 4.20.3+127-gc42374a105-1 (25 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
xen4.20.0+68-g35cb38b222-1 ... 4.20.2+7-g1badcf5035-2 (6 versions)4.20.3+127-gc42374a105-0+deb13u1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—
xen4.20.0+68-g35cb38b222-1, 4.20.2+37-g61ff35323e-1, 4.20.2+7-g1badcf5035-1, 4.20.2+7-g1badcf5035-24.20.3+127-gc42374a105-1—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
xen—4.18.5-r9—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
xen—4.19.5-r4—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
xen—4.20.3-r4—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
xen—4.20.3-r4—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
xen—4.21.1-r6—

Weakness Classification(2)

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

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 97× 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 699 total refreshes for this CVE.

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

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 September 4, 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 54.0% 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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