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Critical 9.1Published Jun 9, 2026

CVE-2025-10263Arm 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,…

Updated under an hour ago ()

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It affects Arm C1-Ultra and 28 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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
9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-362, CWE-266
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Arm
NVD analysis
Awaiting Analysis
Record last updated
Sep 4, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Arm C1-Ultra
arm:c1_ultra (from the name)
0
CNA record
Arm C1-Premium
arm:c1_premium (from the name)
0
CNA record
Arm Neoverse V3
arm:neoverse_v3 (from the name)
0
CNA record
Arm Neoverse V3AE
arm:neoverse_v3ae (from the name)
0
CNA record
Arm Neoverse V1
arm:neoverse_v1 (from the name)
0
CNA record
Arm Neoverse N2
arm:neoverse_n2 (from the name)
0
CNA record
Arm Neoverse N1
arm:neoverse_n1 (from the name)
0
CNA record
Arm Cortex-X925
arm:cortex_x925 (from the name)
0
CNA record
Arm Cortex-X4
arm:cortex_x4 (from the name)
0
CNA record
Arm Cortex-X3
arm:cortex_x3 (from the name)
0
CNA record
Arm Cortex-X2
arm:cortex_x2 (from the name)
0
CNA record
Arm Cortex-X1
arm:cortex_x1 (from the name)
0
CNA record
Arm Cortex-X1C
arm:cortex_x1c (from the name)
0
CNA record
Arm Cortex-A710
arm:cortex_a710 (from the name)
0
CNA record
Arm Cortex-A78
arm:cortex_a78 (from the name)
0
CNA record
Arm Cortex-A78AE
arm:cortex_a78ae (from the name)
0
CNA record
Arm Cortex-A78C
arm:cortex_a78c (from the name)
0
CNA record
Arm Cortex-A77
arm:cortex_a77 (from the name)
0
CNA record
Arm Cortex-A76
arm:cortex_a76 (from the name)
0
CNA record
Arm Cortex-A76AE
arm:cortex_a76ae (from the name)
0
CNA record
from 0:6.12.0-211.30.1.el10_2 not affected
CISA ADP
from 0:6.12.0-55.98.1.el10_0 not affected
CISA ADP
from 0:4.18.0-305.200.1.el8_4 not affected
CISA ADP
from 0:4.18.0-305.200.1.el8_4 not affected
CISA ADP
from 0:4.18.0-477.158.1.el8_8 not affected
CISA ADP
from 0:4.18.0-477.158.1.el8_8 not affected
CISA ADP
from 0:5.14.0-570.131.1.el9_6 not affected
CISA ADP
from 412.86.202608080425-0 not affected
CISA ADP
All versions
CISA ADP

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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