01 Record

CVE-2026-52911

ksmbd: scope conn->binding slowpath to bound sessions only

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ksmbd: scope conn->binding slowpath to bound sessions only

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.66% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 51.1% of scored records. A rank, not a probability.
NVD base score: 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-07-08.
Red Hat severity: Important. 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

2026-06-21 06:18Z4 MO AGO

Last updated

2026-08-05 12:31Z2 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-488Exposure of Data Element to Wrong SessionBase

Data version

5.2

Document digest

37776cc011e8e3c227fc75264c5c676f56bc205f90b5b3b976eefb83d91bdacb

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf5a544e3bab78142207e0242d22442db85ba1eff to < e74c00c6af428a39e564cdc5bd3a3648c6d8de87, f5a544e3bab78142207e0242d22442db85ba1eff to < e3a93ce6e25757b8f375e38b8f91e1d9da4edc1a, f5a544e3bab78142207e0242d22442db85ba1eff to < 1ff46c9915c1cbf454db58a8cb87f7cac818e6a6, f5a544e3bab78142207e0242d22442db85ba1eff to < 974c1c224e85549dc3459f3bb2255bbbdd2b9372, f5a544e3bab78142207e0242d22442db85ba1eff to < 2cc8a4db633b10715450b291c1343859a4b2c509, f5a544e3bab78142207e0242d22442db85ba1eff to < 1e2bec062c5c9ec282636715166056d0998d746d, f5a544e3bab78142207e0242d22442db85ba1eff to < b0da97c034b6107d14e537e212d4ce8b22109a58, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e74c00c6af428a39e564cdc5bd3a3648c6d8de87
git.kernel.orghttps://git.kernel.org/stable/c/e3a93ce6e25757b8f375e38b8f91e1d9da4edc1a
git.kernel.orghttps://git.kernel.org/stable/c/1ff46c9915c1cbf454db58a8cb87f7cac818e6a6
git.kernel.orghttps://git.kernel.org/stable/c/974c1c224e85549dc3459f3bb2255bbbdd2b9372
git.kernel.orghttps://git.kernel.org/stable/c/2cc8a4db633b10715450b291c1343859a4b2c509
git.kernel.orghttps://git.kernel.org/stable/c/1e2bec062c5c9ec282636715166056d0998d746d
git.kernel.orghttps://git.kernel.org/stable/c/b0da97c034b6107d14e537e212d4ce8b22109a58

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

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

Debian 13

linux
Fixed in 6.12.94-1

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

Debian 14

linux
Fixed in 7.0.10-1

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