Action not permitted
Modal body text goes here.
Modal Title
Modal Body
GHSA-X9C8-763W-495X
Vulnerability from github – Published: 2026-06-09 12:32 – Updated: 2026-07-03 15:31
VLAI
Details
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.
Severity
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2025-10263"
],
"database_specific": {
"cwe_ids": [
"CWE-266",
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T10:16:33Z",
"severity": "CRITICAL"
},
"details": "Arm C1-Ultra, C1-Premium, Neoverse V3 \u0026 V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 \u0026 X1C, Cortex-A710, Cortex-A78, A78AE \u0026 A78C, Cortex-A77, Cortex-A76 \u0026 A76A may allow writes to resources owned by a higher exception level.",
"id": "GHSA-x9c8-763w-495x",
"modified": "2026-07-03T15:31:54Z",
"published": "2026-06-09T12:32:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10263"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:34911"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-10263"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486958"
},
{
"type": "WEB",
"url": "https://developer.arm.com/documentation/112137"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-10263.json"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/06/09/13"
},
{
"type": "WEB",
"url": "http://xenbits.xen.org/xsa/advisory-493.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
CVE-2025-10263 (GCVE-0-2025-10263)
Vulnerability from cvelistv5 – Published: 2026-06-09 09:23 – Updated: 2026-07-03 12:05
VLAI
EPSS
Summary
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.
Severity
9.1 (Critical)
8.4 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://developer.arm.com/documentation/112137 | |
| http://xenbits.xen.org/xsa/advisory-493.html | |
| http://www.openwall.com/lists/oss-security/2026/0… | |
| https://access.redhat.com/security/cve/CVE-2025-10263 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2486958 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:34911 | vendor-advisoryx_refsource_REDHAT |
Impacted products
32 products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-06-09T16:53:49.813Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://xenbits.xen.org/xsa/advisory-493.html"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/09/13"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-10263",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-09T14:11:21.775441Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T14:11:48.257Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux BaseOS (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux Real Time for NFV (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux Real Time (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux_nvidia:"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux for NVIDIA 26",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
}
],
"datePublic": "2026-06-09T09:23:18.802Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation (TLBI) operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local attacker to gain kernel privileges or a guest VM to escape to the hypervisor, resulting in complete system compromise."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-266",
"description": "Incorrect Privilege Assignment",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-03T12:05:05.282Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2025-10263"
},
{
"name": "RHBZ#2486958",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486958"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-10263.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:34911"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:34911: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-09T11:01:37.157Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-06-09T09:23:18.802Z",
"value": "Made public."
}
],
"title": "kernel: Arm Processors: Privilege escalation or information disclosure via writes to higher exception level resources",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "C1-Ultra",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "C1-Premium",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Neoverse V3",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Neoverse V3AE",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Neoverse V1",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Neoverse N2",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Neoverse N1",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X925",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X4",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X3",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X2",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X1",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-X1C",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A710",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A78",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A78AE",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A78C",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A77",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A76",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Cortex-A76AE",
"vendor": "Arm",
"versions": [
{
"status": "affected",
"version": "0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Arm C1-Ultra, C1-Premium, Neoverse V3 \u0026amp; V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 \u0026amp; X1C, Cortex-A710, Cortex-A78, A78AE \u0026amp; A78C, Cortex-A77, Cortex-A76 \u0026amp; A76A may allow writes to resources owned by a higher exception level."
}
],
"value": "Arm C1-Ultra, C1-Premium, Neoverse V3 \u0026 V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 \u0026 X1C, Cortex-A710, Cortex-A78, A78AE \u0026 A78C, Cortex-A77, Cortex-A76 \u0026 A76A may allow writes to resources owned by a higher exception level."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-362",
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-09T09:23:18.802Z",
"orgId": "56a131ea-b967-4a0d-a41e-5f3549952846",
"shortName": "Arm"
},
"references": [
{
"url": "https://developer.arm.com/documentation/112137"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "56a131ea-b967-4a0d-a41e-5f3549952846",
"assignerShortName": "Arm",
"cveId": "CVE-2025-10263",
"datePublished": "2026-06-09T09:23:18.802Z",
"dateReserved": "2025-09-11T08:50:36.018Z",
"dateUpdated": "2026-07-03T12:05:05.282Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…