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VulnerabilityPublished Updated

CVE-2025-68782: Linux kernel · scsi: target: Reset t_task_cdb pointer in error case

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.5 High · fixed in 8727663ded659aad55eef21e3864ebf5a4796a96 : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:07 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-06-16.

Patch
Available – fixed in 8727663ded659aad55eef21e3864ebf5a4796a96, 5053eab38a4c4543522d0c320c639c56a8b59908, 0260ad551b0815eb788d47f32899fbcd65d6f128 +4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 8727663ded659aad55eef21e3864ebf5a4796a96
Fixed in
  • 8727663ded659aad55eef21e3864ebf5a4796a96
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 5053eab38a4c4543522d0c320c639c56a8b59908
Fixed in
  • 5053eab38a4c4543522d0c320c639c56a8b59908
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 0260ad551b0815eb788d47f32899fbcd65d6f128
Fixed in
  • 0260ad551b0815eb788d47f32899fbcd65d6f128
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 45fd86b444105c8bd07a763f58635c87e5dc7aea
Fixed in
  • 45fd86b444105c8bd07a763f58635c87e5dc7aea
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 8edbb9e371af186b4cf40819dab65fafe109df4d
Fixed in
  • 8edbb9e371af186b4cf40819dab65fafe109df4d
LinuxLinuxAffected
  • ≥ 9e95fb805dc043cc8ed878a08d1583e4097a5f80, < 6cac97b12bdab04832e0416d049efcd0d48d303b
Fixed in
  • 6cac97b12bdab04832e0416d049efcd0d48d303b

AI-suggested

A fix is available in the Linux kernel as indicated by the presence of fixed commit versions. Users should update to a kernel version that includes these fixes to remediate the vulnerability.

Description

CVE-2025-68782 is a high-severity vulnerability in the Linux kernel's SCSI target subsystem. It occurs when the allocation of cmd->t_task_cdb fails, leaving the pointer NULL but later dereferenced in an error path. This can lead to a NULL pointer dereference causing a denial of service (system crash). The issue has been fixed by resetting the NULL t_task_cdb pointer to a default fixed-size buffer in error cases.

References

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