01 Record

CVE-2026-31393

Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access

HighPUBLISHEDCNA: Linux

CNA base score8.1 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

View raw JSON

02 Description

Bluetooth: L2CAP: Validate L2CAP_INFO_RSP payload length before access

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: 0.26% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 17.1% of scored records. A rank, not a probability.
NVD base score: 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-07-24.
Red Hat severity: Moderate. 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

2026-04-03 15:15Z5 MO AGO

Last updated

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase
CWE-130Improper Handling of Length Parameter InconsistencyBase

Data version

5.2

Document digest

c5bd8fd924a3b5fa8835f3beceac0eed3c0aab99600ef5da5a40f0004960571b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux4e8402a3f884427f9233ba436459c158d1f2e114 to < 187e6fe939295be36063a1d91f8bebee04399a8c, 4e8402a3f884427f9233ba436459c158d1f2e114 to < 5229e7d15771eac2b5886bfb1f976aea0c1eec14, 4e8402a3f884427f9233ba436459c158d1f2e114 to < 3b646516cba2ebc4b51a72954903326e7c1e443f, 4e8402a3f884427f9233ba436459c158d1f2e114 to < 807bd1258453c4c83f6ae9dbc1e7b44860ff40d0, 4e8402a3f884427f9233ba436459c158d1f2e114 to < 9aeacde4da0f02d42fd968fd32f245828b230171, 4e8402a3f884427f9233ba436459c158d1f2e114 to < e7ff754e339e3d5ce29aa9f95352d0186df8fbd9, 4e8402a3f884427f9233ba436459c158d1f2e114 to < db2872d054e467810078e2b9f440a5b326a601b2, 4e8402a3f884427f9233ba436459c158d1f2e114 to < dd815e6e3918dc75a49aaabac36e4f024d675101, 2.6.24—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/187e6fe939295be36063a1d91f8bebee04399a8c
git.kernel.orghttps://git.kernel.org/stable/c/5229e7d15771eac2b5886bfb1f976aea0c1eec14
git.kernel.orghttps://git.kernel.org/stable/c/3b646516cba2ebc4b51a72954903326e7c1e443f
git.kernel.orghttps://git.kernel.org/stable/c/807bd1258453c4c83f6ae9dbc1e7b44860ff40d0
git.kernel.orghttps://git.kernel.org/stable/c/9aeacde4da0f02d42fd968fd32f245828b230171
git.kernel.orghttps://git.kernel.org/stable/c/e7ff754e339e3d5ce29aa9f95352d0186df8fbd9
git.kernel.orghttps://git.kernel.org/stable/c/db2872d054e467810078e2b9f440a5b326a601b2
git.kernel.orghttps://git.kernel.org/stable/c/dd815e6e3918dc75a49aaabac36e4f024d675101

01 Record index

CVE-2026-31393

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31393

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References