CVE-2026-68130: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-68130DEBIAN-CVE-2026-68130
Published 10-08-2026Last modified 23-08-2026
Open JSON

Vulnerability summary

CVE-2026-68130 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.3% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 8
MGASA-2026-0336MGASA-2026-0337USN-8887-1USN-8887-2USN-8887-3USN-8888-1

Timeline

  1. 10-08-2026
    PublishedVulnerability first disclosed.
  2. 23-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: defer destroy_previous_session() until after NTLM authentication In ntlm_authenticate(), destroy_previous_session() is called using a user pointer resolved from the client-supplied NTLM blob username field before the NTLMv2 response is validated. An authenticated attacker can set the NTLM blob username to match a victim account and set PreviousSessionId to the victim's session ID; destroy_previous_session() destroys the victim's session while ksmbd_decode_ntlmssp_auth_blob() subsequently rejects the request with -EPERM. Move destroy_previous_session() and the prev_id assignment to after ksmbd_decode_ntlmssp_auth_blob() returns success and use sess->user rather than the pre-authentication lookup result. This matches the ordering already used by krb5_authenticate(), where destroy_previous_session() is called only after ksmbd_krb5_authenticate() returns success.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.101-1 | < 7.1.6-1
  • linux-6.12< 6.12.101-1~deb12u1
Linux1 product
  • linux≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < ab0230257ebdf48b07eaa679a8c92bc842fe3498 | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 370b0ec8822b69c9073265e16b7daaa8201c9a4f | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 5c833074b549e5db125436a6f681af682261f785 | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 243f1614ef2aca2d62a744575f1c24b07cd42757 | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 18705cace0619fd2123737dcd028147774f38181 | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 0ff12308c8a6c16ab68f0a487ffa93d69001dc18 | ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < c74801ee524f477c174a1899782b6c3b6918d407 | 5.15

3 vendors · 160 products

References

19 links
Show all 19 references