01 Record

CVE-2025-21728

bpf: Send signals asynchronously if !preemptible

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

bpf: Send signals asynchronously if !preemptible

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: 0.20% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 10.1% 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: Modified. 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

2025-02-27 02:07Z1 YR AGO

Last updated

2026-07-14 12:39Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

bb19502f795a57ab23597e92d45d0ae3202055cce61b492809e2a03b7c5d19af

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxfd29a0242f86b2d95ad666aa9f92a3d0f7bfdab6 to < feba1308bc5e8e04cee751d39fae8a9b407a9034, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < ce51eab2070e295d298f42a2f1db269cd1b56d55, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < be42a09fe898635b0093c0c8dac1bfabe225c240, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < eeef8e65041a031bd8a747a392c14b76a123a12c, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < 78b97783496b454435639937db3303e900a24d3f, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < 092fc76b7ab4163e008f9cde596a58dad2108260, 1bc7896e9ef44fd77858b3ef0b8a6840be3a4494 to < 87c544108b612512b254c8f79aa5c0a8546e2cc4, 7930d01afb7281edd9782971e0cca6fe587c7a7b, 5.4.33 to < 5.4.291, 5.5.18 to < 5.6, 5.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/feba1308bc5e8e04cee751d39fae8a9b407a9034
git.kernel.orghttps://git.kernel.org/stable/c/ce51eab2070e295d298f42a2f1db269cd1b56d55
git.kernel.orghttps://git.kernel.org/stable/c/e306eaaa3d78b462db5f5b11e0171f9d2b6ca3f4
git.kernel.orghttps://git.kernel.org/stable/c/be42a09fe898635b0093c0c8dac1bfabe225c240
git.kernel.orghttps://git.kernel.org/stable/c/eeef8e65041a031bd8a747a392c14b76a123a12c
git.kernel.orghttps://git.kernel.org/stable/c/78b97783496b454435639937db3303e900a24d3f
git.kernel.orghttps://git.kernel.org/stable/c/092fc76b7ab4163e008f9cde596a58dad2108260
git.kernel.orghttps://git.kernel.org/stable/c/87c544108b612512b254c8f79aa5c0a8546e2cc4
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-265688.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html

01 Record index

CVE-2025-21728

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21728

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References