01 Record

CVE-2026-43333

bpf: reject direct access to nullable PTR_TO_BUF pointers

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

bpf: reject direct access to nullable PTR_TO_BUF pointers

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: 0.12% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.5% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-06-17.
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

2026-05-08 13:31Z3 MO AGO

Last updated

2026-05-23 16:06Z3 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

45f2f28ee52ebddc9874348cad099eb92e79fa581c1a1a392d01ec4739c46ac8

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb453361384c2db1c703dacb806d5fd36aec4ceca to < 10bc4a4dcded509c5d5c67d497900c3922c604cd, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < 21a10c06ffae24cb01fd174a7ab7736001d2ea56, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < 8755066f7bd0f4ac46a29d1708c7b20894539252, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < 70abd9d118da2f56beb4ec22e3a29becae373535, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < 63276547debc4d8a73eefb2c5273b2a905c961b0, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < 4f6c99dc0420f1a3d671c1b8ab8a7ac84d9cba09, 20b2aff4bc15bda809f994761d5719827d66c0b4 to < b0db1accbc7395657c2b79db59fa9fae0d6656f3, e982070f8970bb62e69ed7c9cafff886ed200349, 5.15.37 to < 5.15.203, 5.16.11 to < 5.17, 5.17—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/10bc4a4dcded509c5d5c67d497900c3922c604cd
git.kernel.orghttps://git.kernel.org/stable/c/21a10c06ffae24cb01fd174a7ab7736001d2ea56
git.kernel.orghttps://git.kernel.org/stable/c/8755066f7bd0f4ac46a29d1708c7b20894539252
git.kernel.orghttps://git.kernel.org/stable/c/70abd9d118da2f56beb4ec22e3a29becae373535
git.kernel.orghttps://git.kernel.org/stable/c/63276547debc4d8a73eefb2c5273b2a905c961b0
git.kernel.orghttps://git.kernel.org/stable/c/4f6c99dc0420f1a3d671c1b8ab8a7ac84d9cba09
git.kernel.orghttps://git.kernel.org/stable/c/b0db1accbc7395657c2b79db59fa9fae0d6656f3

01 Record index

CVE-2026-43333

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-43333

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References