CVE-2025-68820 (GCVE-0-2025-68820)
Vulnerability from cvelistv5 – Published: 2026-01-13 15:29 – Updated: 2026-10-19 18:15
VLAI
EPSS
VEX
Title
ext4: xattr: fix null pointer deref in ext4_raw_inode()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: xattr: fix null pointer deref in ext4_raw_inode()
If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),
iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()
lacks error checking, this will lead to a null pointer dereference
in ext4_raw_inode(), called right after ext4_get_inode_loc().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 16:55 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
9 references
Impacted products
8 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3 , < b72a3476f0c97d02f63a6e9fff127348d55436f6
(git)
Affected: f737418b6de31c962c7192777ee4018906975383 , < 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3 (git) Affected: cf9291a3449b04688b81e32621e88de8f4314b54 , < 190ad0f22ba49f1101182b80e3af50ca2ddfe72f (git) Affected: 362a90cecd36e8a5c415966d0b75b04a0270e4dd , < b5d942922182e82724b7152cb998f540132885ec (git) Affected: eb59cc31b6ea076021d14b04e7faab1636b87d0e , < 5b154e901fda2e98570b8f426a481f5740097dc2 (git) Affected: c8e008b60492cf6fd31ef127aea6d02fd3d314cd , < ce5f54c065a4a7cbb92787f4f140917112350142 (git) Affected: c8e008b60492cf6fd31ef127aea6d02fd3d314cd , < b97cb7d6a051aa6ebd57906df0e26e9e36c26d14 (git) Affected: 6aff941cb0f7d0c897c3698ad2e30672709135e3 (git) Affected: 3bc6317033f365ce578eb6039445fb66162722fd (git) Affected: 836e625b03a666cf93ff5be328c8cb30336db872 (git) Affected: 5.10.237 , < 5.10.248 (semver) Affected: 5.15.181 , < 5.15.198 (semver) Affected: 6.1.135 , < 6.1.160 (semver) Affected: 6.6.88 , < 6.6.120 (semver) Affected: 6.12.24 , < 6.12.64 (semver) Affected: 5.4.293 , < 5.5 (semver) Affected: 6.13.12 , < 6.14 (semver) Affected: 6.14.3 , < 6.15 (semver) |
guessed | |
| Linux | Linux |
Affected:
6.15
Unaffected: 0 , < 6.15 (semver) Unaffected: 5.10.248 , ≤ 5.10.* (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.160 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.64 , ≤ 6.12.* (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.7 , < *
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-68820",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T16:55:32.991979Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T18:15:10.329Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T01:10:24.350Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b72a3476f0c97d02f63a6e9fff127348d55436f6",
"status": "affected",
"version": "76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3",
"versionType": "git"
},
{
"lessThan": "3d8d22e75f7edfa0b30ff27330fd6a1285d594c3",
"status": "affected",
"version": "f737418b6de31c962c7192777ee4018906975383",
"versionType": "git"
},
{
"lessThan": "190ad0f22ba49f1101182b80e3af50ca2ddfe72f",
"status": "affected",
"version": "cf9291a3449b04688b81e32621e88de8f4314b54",
"versionType": "git"
},
{
"lessThan": "b5d942922182e82724b7152cb998f540132885ec",
"status": "affected",
"version": "362a90cecd36e8a5c415966d0b75b04a0270e4dd",
"versionType": "git"
},
{
"lessThan": "5b154e901fda2e98570b8f426a481f5740097dc2",
"status": "affected",
"version": "eb59cc31b6ea076021d14b04e7faab1636b87d0e",
"versionType": "git"
},
{
"lessThan": "ce5f54c065a4a7cbb92787f4f140917112350142",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"lessThan": "b97cb7d6a051aa6ebd57906df0e26e9e36c26d14",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"status": "affected",
"version": "6aff941cb0f7d0c897c3698ad2e30672709135e3",
"versionType": "git"
},
{
"status": "affected",
"version": "3bc6317033f365ce578eb6039445fb66162722fd",
"versionType": "git"
},
{
"status": "affected",
"version": "836e625b03a666cf93ff5be328c8cb30336db872",
"versionType": "git"
},
{
"lessThan": "5.10.248",
"status": "affected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThan": "5.15.198",
"status": "affected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThan": "6.1.160",
"status": "affected",
"version": "6.1.135",
"versionType": "semver"
},
{
"lessThan": "6.6.120",
"status": "affected",
"version": "6.6.88",
"versionType": "semver"
},
{
"lessThan": "6.12.64",
"status": "affected",
"version": "6.12.24",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.293",
"versionType": "semver"
},
{
"lessThan": "6.14",
"status": "affected",
"version": "6.13.12",
"versionType": "semver"
},
{
"lessThan": "6.15",
"status": "affected",
"version": "6.14.3",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"lessThan": "6.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.248",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.120",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.248",
"versionStartIncluding": "5.10.237",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.198",
"versionStartIncluding": "5.15.181",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.160",
"versionStartIncluding": "6.1.135",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.120",
"versionStartIncluding": "6.6.88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.64",
"versionStartIncluding": "6.12.24",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.3",
"versionStartIncluding": "6.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19",
"versionStartIncluding": "6.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.293",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.14.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: xattr: fix null pointer deref in ext4_raw_inode()\n\nIf ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),\niloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()\nlacks error checking, this will lead to a null pointer dereference\nin ext4_raw_inode(), called right after ext4_get_inode_loc().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T16:02:59.512Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6"
},
{
"url": "https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3"
},
{
"url": "https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f"
},
{
"url": "https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec"
},
{
"url": "https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2"
},
{
"url": "https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142"
},
{
"url": "https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14"
}
],
"title": "ext4: xattr: fix null pointer deref in ext4_raw_inode()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68820",
"datePublished": "2026-01-13T15:29:23.351Z",
"dateReserved": "2025-12-24T10:30:51.048Z",
"dateUpdated": "2026-10-19T18:15:10.329Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-68820",
"date": "2026-11-02",
"epss": "0.00235",
"percentile": "0.14413"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b72a3476f0c97d02f63a6e9fff127348d55436f6",
"status": "affected",
"version": "76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3",
"versionType": "git"
},
{
"lessThan": "3d8d22e75f7edfa0b30ff27330fd6a1285d594c3",
"status": "affected",
"version": "f737418b6de31c962c7192777ee4018906975383",
"versionType": "git"
},
{
"lessThan": "190ad0f22ba49f1101182b80e3af50ca2ddfe72f",
"status": "affected",
"version": "cf9291a3449b04688b81e32621e88de8f4314b54",
"versionType": "git"
},
{
"lessThan": "b5d942922182e82724b7152cb998f540132885ec",
"status": "affected",
"version": "362a90cecd36e8a5c415966d0b75b04a0270e4dd",
"versionType": "git"
},
{
"lessThan": "5b154e901fda2e98570b8f426a481f5740097dc2",
"status": "affected",
"version": "eb59cc31b6ea076021d14b04e7faab1636b87d0e",
"versionType": "git"
},
{
"lessThan": "ce5f54c065a4a7cbb92787f4f140917112350142",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"lessThan": "b97cb7d6a051aa6ebd57906df0e26e9e36c26d14",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"status": "affected",
"version": "6aff941cb0f7d0c897c3698ad2e30672709135e3",
"versionType": "git"
},
{
"status": "affected",
"version": "3bc6317033f365ce578eb6039445fb66162722fd",
"versionType": "git"
},
{
"status": "affected",
"version": "836e625b03a666cf93ff5be328c8cb30336db872",
"versionType": "git"
},
{
"lessThan": "5.10.248",
"status": "affected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThan": "5.15.198",
"status": "affected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThan": "6.1.160",
"status": "affected",
"version": "6.1.135",
"versionType": "semver"
},
{
"lessThan": "6.6.120",
"status": "affected",
"version": "6.6.88",
"versionType": "semver"
},
{
"lessThan": "6.12.64",
"status": "affected",
"version": "6.12.24",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.293",
"versionType": "semver"
},
{
"lessThan": "6.14",
"status": "affected",
"version": "6.13.12",
"versionType": "semver"
},
{
"lessThan": "6.15",
"status": "affected",
"version": "6.14.3",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"lessThan": "6.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.248",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.120",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: xattr: fix null pointer deref in ext4_raw_inode()\n\nIf ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),\niloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()\nlacks error checking, this will lead to a null pointer dereference\nin ext4_raw_inode(), called right after ext4_get_inode_loc().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\next4: xattr: corregir desreferencia de puntero nulo en ext4_raw_inode()\n\nSi ext4_get_inode_loc() falla (p. ej., si devuelve -EFSCORRUPTED), iloc.bh permanecer\u00e1 establecido en NULL. Dado que ext4_xattr_inode_dec_ref_all() carece de comprobaci\u00f3n de errores, esto conducir\u00e1 a una desreferencia de puntero nulo en ext4_raw_inode(), llamada justo despu\u00e9s de ext4_get_inode_loc().\n\nEncontrado por Linux Verification Center (linuxtesting.org) con SVACE."
}
],
"id": "CVE-2025-68820",
"lastModified": "2026-10-19T19:17:07.390",
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-68820",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T16:55:32.991979Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-01-13T16:16:04.327",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-28T07:11:29+00:00",
"cve": "CVE-2025-68820",
"id": "CVE-2025-68820",
"initial_release_date": "2025-01-01T00:00:00+00:00",
"product_status:known_affected": "246",
"product_status:known_not_affected": "28",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ext4: xattr: fix null pointer deref in ext4_raw_inode()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68820.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.6",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.7",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T01:10:24.350Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
}
],
"x_adpType": "supplier"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-68820",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T16:55:32.991979Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T16:55:49.290Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b72a3476f0c97d02f63a6e9fff127348d55436f6",
"status": "affected",
"version": "76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3",
"versionType": "git"
},
{
"lessThan": "3d8d22e75f7edfa0b30ff27330fd6a1285d594c3",
"status": "affected",
"version": "f737418b6de31c962c7192777ee4018906975383",
"versionType": "git"
},
{
"lessThan": "190ad0f22ba49f1101182b80e3af50ca2ddfe72f",
"status": "affected",
"version": "cf9291a3449b04688b81e32621e88de8f4314b54",
"versionType": "git"
},
{
"lessThan": "b5d942922182e82724b7152cb998f540132885ec",
"status": "affected",
"version": "362a90cecd36e8a5c415966d0b75b04a0270e4dd",
"versionType": "git"
},
{
"lessThan": "5b154e901fda2e98570b8f426a481f5740097dc2",
"status": "affected",
"version": "eb59cc31b6ea076021d14b04e7faab1636b87d0e",
"versionType": "git"
},
{
"lessThan": "ce5f54c065a4a7cbb92787f4f140917112350142",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"lessThan": "b97cb7d6a051aa6ebd57906df0e26e9e36c26d14",
"status": "affected",
"version": "c8e008b60492cf6fd31ef127aea6d02fd3d314cd",
"versionType": "git"
},
{
"status": "affected",
"version": "6aff941cb0f7d0c897c3698ad2e30672709135e3",
"versionType": "git"
},
{
"status": "affected",
"version": "3bc6317033f365ce578eb6039445fb66162722fd",
"versionType": "git"
},
{
"status": "affected",
"version": "836e625b03a666cf93ff5be328c8cb30336db872",
"versionType": "git"
},
{
"lessThan": "5.10.248",
"status": "affected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThan": "5.15.198",
"status": "affected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThan": "6.1.160",
"status": "affected",
"version": "6.1.135",
"versionType": "semver"
},
{
"lessThan": "6.6.120",
"status": "affected",
"version": "6.6.88",
"versionType": "semver"
},
{
"lessThan": "6.12.64",
"status": "affected",
"version": "6.12.24",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.293",
"versionType": "semver"
},
{
"lessThan": "6.14",
"status": "affected",
"version": "6.13.12",
"versionType": "semver"
},
{
"lessThan": "6.15",
"status": "affected",
"version": "6.14.3",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/ext4/xattr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"lessThan": "6.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.248",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.120",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.248",
"versionStartIncluding": "5.10.237",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.198",
"versionStartIncluding": "5.15.181",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.160",
"versionStartIncluding": "6.1.135",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.120",
"versionStartIncluding": "6.6.88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.64",
"versionStartIncluding": "6.12.24",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.3",
"versionStartIncluding": "6.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19",
"versionStartIncluding": "6.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.293",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.13.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.14.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: xattr: fix null pointer deref in ext4_raw_inode()\n\nIf ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),\niloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()\nlacks error checking, this will lead to a null pointer dereference\nin ext4_raw_inode(), called right after ext4_get_inode_loc().\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T16:02:59.512Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6"
},
{
"url": "https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3"
},
{
"url": "https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f"
},
{
"url": "https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec"
},
{
"url": "https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2"
},
{
"url": "https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142"
},
{
"url": "https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14"
}
],
"title": "ext4: xattr: fix null pointer deref in ext4_raw_inode()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68820",
"datePublished": "2026-01-13T15:29:23.351Z",
"dateReserved": "2025-12-24T10:30:51.048Z",
"dateUpdated": "2026-10-19T18:15:10.329Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.