8.2

CVE-2026-90152: linux

CVSS: 8.2v4.0HighReceived
AliasesUBUNTU-CVE-2026-90152DEBIAN-CVE-2026-90152
Published 17-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-90152 is a high (CVSS 8.2) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.4% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11893-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix session leak in ksmbd_session_register() See the procedure below: smb2_sess_setup ksmbd_smb2_session_create __session_create atomic_set(&sess->refcnt, 2) hash_add(sessions_table, &sess->hlist, sess->id) ksmbd_session_register xa_store(&conn->sessions, sess->id, sess) // fail ksmbd_user_session_put atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed Remove the session from sessions_table and drop its table reference if xa_store() fails.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ f5c779b7ddbda30866cf2a27c63e34158f858c73, < 988f99bfddda4e2d1da5f6e98b237dd85e123cee | ≥ f5c779b7ddbda30866cf2a27c63e34158f858c73, < 03a22a003f41b182245e6c71fe565e277cff7094 | ≥ f5c779b7ddbda30866cf2a27c63e34158f858c73, < b967a595fb735d313a8676b2ca6a4cba38506482 | ≥ f5c779b7ddbda30866cf2a27c63e34158f858c73, < 55c677619084f9c9fa4146d933cc8ccafc924c87 | ≥ f5c779b7ddbda30866cf2a27c63e34158f858c73, < 99b25b046e47e4904373cfeb445c5483f1633d88 | 708c304b583d789957399dd8237f212cf8ad1e4d | f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b | d270631c21e68fb8016d6e231d022d7023a2df6f | 02f41d88f15d6b7d523e52cc3f87488f57e9265b | ≥ 5.15.145, < 5.16 | ≥ 6.1.29, < 6.2 | ≥ 6.2.16, < 6.3 | ≥ 6.3.2, < 6.4 | 6.4

3 vendors · 160 products

References

9 links