CVE-2025-10263: Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-
Noroxi assessment
Priority: Monitor (action score 36/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.54% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7417; Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7417; Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.7219.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7417; Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7417; Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.7219 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- BDU:2026-13733
- ALSA-2026:34911
- ALSA-2026:36018
- ALSA-2026:36348
- ALSA-2026:36349
- openSUSE-SU-2026:21388-1
- RHSA-2026:34911
- RHSA-2026:36018
- RHSA-2026:36348
- RHSA-2026:36349
- RHSA-2026:47248
- RHSA-2026:49031
- RHSA-2026:49033
- RHSA-2026:51603
- RHSA-2026:51604
- RHSA-2026:51746
- RHSA-2026:52649
- RHSA-2026:55445
- RLSA-2026:36018
- SUSE-SU-2026:22433-1
- Published
- Jun 9, 2026
- Updated
- Sep 4, 2026
- EPSS
- 0.5% · 45th percentile
- CWE
- CWE-362
Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 36 / 40 · 9.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| enterprise linux | 10.2 | cpe:2.3:redhat:enterprise_linux:10.2 |
| enterprise linux eus | 10.0 | cpe:2.3:redhat:enterprise_linux_eus:10.0 |
| enterprise linux | 8 | cpe:2.3:redhat:enterprise_linux:8 |
| rhel aus | 8.4 | cpe:2.3:redhat:rhel_aus:8.4 |
| rhel eus long life | 8.4 | cpe:2.3:redhat:rhel_eus_long_life:8.4 |
| rhel aus | 8.6 | cpe:2.3:redhat:rhel_aus:8.6 |
| rhel eus long life | 8.6 | cpe:2.3:redhat:rhel_eus_long_life:8.6 |
| rhel tus | 8.8 | cpe:2.3:redhat:rhel_tus:8.8 |
| rhel e4s | 8.8 | cpe:2.3:redhat:rhel_e4s:8.8 |
| enterprise linux | 9 | cpe:2.3:redhat:enterprise_linux:9 |
| rhel e4s | 9.2 | cpe:2.3:redhat:rhel_e4s:9.2 |
| rhel e4s | 9.4 | cpe:2.3:redhat:rhel_e4s:9.4 |
and 17 more
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Arm). Independent of NVD's CPE analysis and usually ahead of it.
Arm C1-Premium
- 0affected
Arm C1-Ultra
- 0affected
Arm Cortex-A710
- 0affected
Arm Cortex-A76
- 0affected
Arm Cortex-A76AE
- 0affected
Arm Cortex-A77
- 0affected
Arm Cortex-A78
- 0affected
Arm Cortex-A78AE
- 0affected
Arm Cortex-A78C
- 0affected
Arm Cortex-X1
- 0affected
Arm Cortex-X1C
- 0affected
Arm Cortex-X2
- 0affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:10 | kernel | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-devel | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-devel-matched | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-modules | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-modules-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-debug-modules-extra | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-devel | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-devel-matched | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-modules | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-modules-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-64k-modules-extra | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-abi-stablelists | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-cross-headers | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug-devel | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug-devel-matched | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug-modules | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
| AlmaLinux:10 | kernel-debug-modules-core | before 6.12.0-211.30.1.el10_2 | 6.12.0-211.30.1.el10_2 |
+96
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Windows 10 Version 21H2 for ARM64-based Systems | 10.0.19044.7417 · KB5094127 | Microsoft (MSRC) |
| Windows 10 Version 22H2 for ARM64-based Systems | 10.0.19045.7417 · KB5094127 | Microsoft (MSRC) |
| Windows 11 Version 23H2 for ARM64-based Systems | 10.0.22631.7219 · KB5093998 | Microsoft (MSRC) |
| Windows 11 Version 24H2 for ARM64-based Systems | 10.0.26100.8655 · KB5094126 | Microsoft (MSRC) |
| Windows 11 Version 25H2 for ARM64-based Systems | 10.0.26200.8655 · KB5094126 | Microsoft (MSRC) |
| Windows 11 Version 26H1 for ARM64-based Systems | 10.0.28000.2269 · KB5095051 | Microsoft (MSRC) |
| almalinux:kernel | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-core | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-core | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-devel-matched | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-core | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-debug-modules-extra | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-devel | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| almalinux:kernel-64k-devel-matched | 6.12.0-211.30.1.el10_2 · AlmaLinux:10 | Package registry (OSV) |
| alpine:xen | 4.18.5-r9 · Alpine:v3.20 | Package registry (OSV) |
| debian:arm-trusted-firmware | 2.12.16+dfsg-1 · Debian:14 | Package registry (OSV) |
| debian:linux | 6.1.176-1 · Debian:12 | Package registry (OSV) |
| debian:xen | 4.17.7-0+deb12u1 · Debian:12 | Package registry (OSV) |
| debian:xen | 4.20.3+127-gc42374a105-0+deb13u1 · Debian:13 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-64kb | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-azure | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-default-base | 6.12.0-160000.36.1.160000.2.17 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-docs | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 6.12.0-160000.36.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
+30
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2026-10-23 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+136 d
- TodayOct 27, 2026+141 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0482 · Jul 2, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Exploit maturitynone → poc
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- www.openwall.com/lists/oss-security/2026/06/09/13
- xenbits.xen.org/xsa/advisory-493.html
- access.redhat.com/errata/RHSA-2026:34911
- access.redhat.com/errata/RHSA-2026:36018
- access.redhat.com/errata/RHSA-2026:36348
- access.redhat.com/errata/RHSA-2026:36349
- access.redhat.com/errata/RHSA-2026:40764
- access.redhat.com/errata/RHSA-2026:47248
- access.redhat.com/errata/RHSA-2026:49031
- access.redhat.com/errata/RHSA-2026:49033
- access.redhat.com/errata/RHSA-2026:51603
- access.redhat.com/errata/RHSA-2026:51604
- access.redhat.com/errata/RHSA-2026:51746
- access.redhat.com/errata/RHSA-2026:52649
- access.redhat.com/errata/RHSA-2026:54187
- access.redhat.com/errata/RHSA-2026:54205
- access.redhat.com/errata/RHSA-2026:54544
- access.redhat.com/errata/RHSA-2026:54553
- access.redhat.com/errata/RHSA-2026:54581
Vendor advisories and official records. Exploit/PoC links are deliberately left out.