01 Record

CVE-2025-21758

ipv6: mcast: add RCU protection to mld_newpack()

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ipv6: mcast: add RCU protection to mld_newpack()

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: 13.71% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 96.2% 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 2026-07-30.
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 7.8)

CNA CVSS vector

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

Weaknesses

CWE-413Improper Resource LockingBase

Data version

5.2

Document digest

512ac33fa0ba8ff17e1601512f2d89e7b857552a990b3ed6a9a29fba7deac9fd

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxb8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < 29fa42197f26a97cde29fa8c40beddf44ea5c8f3, b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < e8af3632a7f2da83e27b083f787bced1faba00b1, b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < 1b91c597b0214b1b462eb627ec02658c944623f2, b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < 25195f9d5ffcc8079ad743a50c0409dbdc48d98a, b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < d60d493b0e65647e0335e6a7c4547abcea7df8e9, b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 to < a527750d877fd334de87eef81f1cb5f0f0ca3373, 2.6.26—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/29fa42197f26a97cde29fa8c40beddf44ea5c8f3
git.kernel.orghttps://git.kernel.org/stable/c/e8af3632a7f2da83e27b083f787bced1faba00b1
git.kernel.orghttps://git.kernel.org/stable/c/1b91c597b0214b1b462eb627ec02658c944623f2
git.kernel.orghttps://git.kernel.org/stable/c/25195f9d5ffcc8079ad743a50c0409dbdc48d98a
git.kernel.orghttps://git.kernel.org/stable/c/d60d493b0e65647e0335e6a7c4547abcea7df8e9
git.kernel.orghttps://git.kernel.org/stable/c/a527750d877fd334de87eef81f1cb5f0f0ca3373
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2025-21758

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21758

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References