01 Record

CVE-2025-21760

ndisc: extend RCU protection in ndisc_send_skb()

HighPUBLISHEDCNA: Linux

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

View raw JSON

02 Description

ndisc: extend RCU protection in ndisc_send_skb()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

36.85% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.4% 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:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-30.

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 02:18Z1 YR AGO

Last updated

2026-08-05 11:54Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant
CWE-414Missing Lock CheckBase

Data version

5.2

Document digest

a39fbc30de524cde3716697fc3d2b92788974204cc2de0d7a9d84ed32ad341fa

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1762f7e88eb34f653b4a915be99a102e347dd45e to < 10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1, 1762f7e88eb34f653b4a915be99a102e347dd45e to < 4d576202b90b1b95a7c428a80b536f91b8201bcc, 1762f7e88eb34f653b4a915be99a102e347dd45e to < e24d225e4cb8cf108bde00b76594499b98f0a74d, 1762f7e88eb34f653b4a915be99a102e347dd45e to < a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d, 1762f7e88eb34f653b4a915be99a102e347dd45e to < ae38982f521621c216fc2f5182cd091f4734641d, 1762f7e88eb34f653b4a915be99a102e347dd45e to < 789230e5a8c1097301afc802e242c79bc8835c67, 1762f7e88eb34f653b4a915be99a102e347dd45e to < 04e05112f10354ffc3bb6cc796d553bab161594c, 1762f7e88eb34f653b4a915be99a102e347dd45e to < ed6ae1f325d3c43966ec1b62ac1459e2b8e45640, 2.6.26—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1
git.kernel.orghttps://git.kernel.org/stable/c/4d576202b90b1b95a7c428a80b536f91b8201bcc
git.kernel.orghttps://git.kernel.org/stable/c/e24d225e4cb8cf108bde00b76594499b98f0a74d
git.kernel.orghttps://git.kernel.org/stable/c/a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d
git.kernel.orghttps://git.kernel.org/stable/c/ae38982f521621c216fc2f5182cd091f4734641d
git.kernel.orghttps://git.kernel.org/stable/c/789230e5a8c1097301afc802e242c79bc8835c67
git.kernel.orghttps://git.kernel.org/stable/c/04e05112f10354ffc3bb6cc796d553bab161594c
git.kernel.orghttps://git.kernel.org/stable/c/ed6ae1f325d3c43966ec1b62ac1459e2b8e45640
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-019113.html

01 Record index

CVE-2025-21760

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21760

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References