01 Record

CVE-2025-68820

ext4: xattr: fix null pointer deref in ext4_raw_inode()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

ext4: xattr: fix null pointer deref in ext4_raw_inode()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 14.2% of scored records. A rank, not a probability.

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Deferred. NVD last modified this record on 2026-10-19.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-01-13 15:29Z9 MO AGO

Last updated

2026-10-19 18:15Z10 DAYS AGO

Reserved

2025-12-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

1f7dae8c38797a698126e83af84f711798d7fbddff382cb05ca538d1dd58acf5

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3 to < b72a3476f0c97d02f63a6e9fff127348d55436f6, f737418b6de31c962c7192777ee4018906975383 to < 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3, cf9291a3449b04688b81e32621e88de8f4314b54 to < 190ad0f22ba49f1101182b80e3af50ca2ddfe72f, 362a90cecd36e8a5c415966d0b75b04a0270e4dd to < b5d942922182e82724b7152cb998f540132885ec, eb59cc31b6ea076021d14b04e7faab1636b87d0e to < 5b154e901fda2e98570b8f426a481f5740097dc2, c8e008b60492cf6fd31ef127aea6d02fd3d314cd to < ce5f54c065a4a7cbb92787f4f140917112350142, c8e008b60492cf6fd31ef127aea6d02fd3d314cd to < b97cb7d6a051aa6ebd57906df0e26e9e36c26d14, 6aff941cb0f7d0c897c3698ad2e30672709135e3, 3bc6317033f365ce578eb6039445fb66162722fd, 836e625b03a666cf93ff5be328c8cb30336db872, 5.10.237 to < 5.10.248, 5.15.181 to < 5.15.198, 6.1.135 to < 6.1.160, 6.6.88 to < 6.6.120, 6.12.24 to < 6.12.64, 5.4.293 to < 5.5, 6.13.12 to < 6.14, 6.14.3 to < 6.15, 6.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6
git.kernel.orghttps://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3
git.kernel.orghttps://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f
git.kernel.orghttps://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec
git.kernel.orghttps://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2
git.kernel.orghttps://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142
git.kernel.orghttps://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-457936.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.162-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.69-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.18.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.