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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: None knownExposed services: Not assessed

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
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100

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%
EPSS PROB
0.5%
EPSS %ILE
43rd
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)
  • every version up to 5.10.259-1: fixed in 5.10.259-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)
  • every version up to 6.1.176-1~deb11u1: fixed in 6.1.176-1~deb11u1
—
xen4.14.2+25-gb6a8c4f72d-2 ... 4.20.3+127-gc42374a105-1 (46 versions)
  • every version on: no fix on record
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
xen4.17.1+2-gb773c48e36-1 ... 4.17.5+72-g01140da4e8-1 (14 versions)
  • every version up to 4.17.7-0+deb12u1: fixed in 4.17.7-0+deb12u1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
xen4.20.0+68-g35cb38b222-1 ... 4.20.2+7-g1badcf5035-2 (6 versions)
  • every version up to 4.20.3+127-gc42374a105-0+deb13u1: fixed in 4.20.3+127-gc42374a105-0+deb13u1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (146 versions)
  • every version up to 7.0.13-1: fixed in 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-g1badcf5035-2
  • every version up to 4.20.3+127-gc42374a105-1: fixed in 4.20.3+127-gc42374a105-1
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.18.5-r9: fixed in 4.18.5-r9
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.19.5-r4: fixed in 4.19.5-r4
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.3-r4: fixed in 4.20.3-r4
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.3-r4: fixed in 4.20.3-r4
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.21.1-r6: fixed in 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 6× in last 7d / 32× 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 713 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

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 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 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-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?
A fix for CVE-2025-10263 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-10263 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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