01 Record

CVE-2026-43112

fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

HighPUBLISHEDCNA: Linux

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

View raw JSON

02 Description

fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

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: 0.35% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 28.2% 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:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-09-04.
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

2026-05-06 07:40Z4 MO AGO

Last updated

2026-09-04 12:04Z14 HR AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

a24e07119d6c19a7bc0d8b12b5104a95cd79f370ee4597c1c0e1021ffd91d056

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc63433a09d6ae4c226fcbc66da4c58fc189fd746 to < a2ba20c17de8eb028f96b1d85f119d3d25655bd9, a31080899d5fdafcccf7f39dd214a814a2c82626 to < fbced33599653471b4581dfe1abc7b467031f126, a31080899d5fdafcccf7f39dd214a814a2c82626 to < 5d4fe469fe7dbff7d874c196bb680a82f2625d95, a31080899d5fdafcccf7f39dd214a814a2c82626 to < 2d29214448ec0f4e7e18bb1c14dd4a6c07f1c439, a31080899d5fdafcccf7f39dd214a814a2c82626 to < 86f9c23e0814cfdffda9eedf0c591c51ba209010, a31080899d5fdafcccf7f39dd214a814a2c82626 to < 49b1ce6d7cfb6c5a49f68bf5ccfcfb6ba14e63c3, a31080899d5fdafcccf7f39dd214a814a2c82626 to < 78ec5bf2f589ec7fd8f169394bfeca541b077317, 5.15.11 to < 5.15.209, 5.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a2ba20c17de8eb028f96b1d85f119d3d25655bd9
git.kernel.orghttps://git.kernel.org/stable/c/fbced33599653471b4581dfe1abc7b467031f126
git.kernel.orghttps://git.kernel.org/stable/c/5d4fe469fe7dbff7d874c196bb680a82f2625d95
git.kernel.orghttps://git.kernel.org/stable/c/2d29214448ec0f4e7e18bb1c14dd4a6c07f1c439
git.kernel.orghttps://git.kernel.org/stable/c/86f9c23e0814cfdffda9eedf0c591c51ba209010
git.kernel.orghttps://git.kernel.org/stable/c/49b1ce6d7cfb6c5a49f68bf5ccfcfb6ba14e63c3
git.kernel.orghttps://git.kernel.org/stable/c/78ec5bf2f589ec7fd8f169394bfeca541b077317
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-43112vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2467015https://bugzilla.redhat.com/show_bug.cgi?id=2467015issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43112.jsonx_sadp-csaf-vex
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:59831vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:60019vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:57402vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:57543vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:57457vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:40764vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:52764vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:34911vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:59662vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:56573vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:53990vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36018vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62642vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36366vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62637vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:53989vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:52649vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62558vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62638vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62639vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62641vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:62640vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36365vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:59663vendor-advisoryx_refsource_REDHAT

01 Record index

CVE-2026-43112

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-43112

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References