01 Record

CVE-2025-21864

tcp: drop secpath at the same time as we currently drop dst

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

tcp: drop secpath at the same time as we currently drop dst

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 ImpactpartialSuccessful exploitation gives limited 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.7% 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

2025-03-12 09:42Z1 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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

b579a13205e84a5a4caf929864432a50b0297382056f862d3936a4235c26cb2a

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux68822bdf76f10c3dc80609d4e2cdc1e847429086 to < 87858bbf21da239ace300d61dd209907995c0491, 68822bdf76f10c3dc80609d4e2cdc1e847429086 to < f1d5e6a5e468308af7759cf5276779d3155c5e98, 68822bdf76f10c3dc80609d4e2cdc1e847429086 to < cd34a07f744451e2ecf9005bb7d24d0b2fb83656, 68822bdf76f10c3dc80609d4e2cdc1e847429086 to < 69cafd9413084cd5012cf5d7c7ec6f3d493726d9, 68822bdf76f10c3dc80609d4e2cdc1e847429086 to < 9b6412e6979f6f9e0632075f8f008937b5cd4efd, 5.19—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/87858bbf21da239ace300d61dd209907995c0491
git.kernel.orghttps://git.kernel.org/stable/c/f1d5e6a5e468308af7759cf5276779d3155c5e98
git.kernel.orghttps://git.kernel.org/stable/c/cd34a07f744451e2ecf9005bb7d24d0b2fb83656
git.kernel.orghttps://git.kernel.org/stable/c/69cafd9413084cd5012cf5d7c7ec6f3d493726d9
git.kernel.orghttps://git.kernel.org/stable/c/9b6412e6979f6f9e0632075f8f008937b5cd4efd
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.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-2025-21864

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21864

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References