01 Record

CVE-2026-74268

tcp: clear sock_ops cb flags before force-closing a child socket

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

tcp: clear sock_ops cb flags before force-closing a child socket

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
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

0.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 53.1% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

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

2026-08-15 05:57Z2 MO AGO

Last updated

2026-10-16 18:55Z13 DAYS AGO

Reserved

2026-08-15

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-414Missing Lock CheckBase

Data version

5.2

Document digest

3307a7af384c00ef5515a6e610b39482430ce2c12844fb4f47e43682340dbc33

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxd44874910a26f3a8f81edf873a2473363f07f660 to < 5d5389b2c37ca00da61d1407618ebe15abae0c8b, d44874910a26f3a8f81edf873a2473363f07f660 to < 9f30ba9aa0270a18fdd1e6cd426c480c35f7de9d, d44874910a26f3a8f81edf873a2473363f07f660 to < 71e9c53220abd7f5a45aa4d5e5b420d3479f3a4f, d44874910a26f3a8f81edf873a2473363f07f660 to < 9fffa6465851a1910a6e9cb7272787dd615b26b1, d44874910a26f3a8f81edf873a2473363f07f660 to < fe23d56e9266d58ba5c380f1970118eedeee0b68, d44874910a26f3a8f81edf873a2473363f07f660 to < ce311bd2e36596f0aa2c92ca86fb3e019ac57eae, d44874910a26f3a8f81edf873a2473363f07f660 to < 8874dafc9099bc49c2e5ebba030f85d276421f92, d44874910a26f3a8f81edf873a2473363f07f660 to < 990348e5bb457697c2f1f7f7b65154a3334d9d2b, 4.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/5d5389b2c37ca00da61d1407618ebe15abae0c8b
git.kernel.orghttps://git.kernel.org/stable/c/9f30ba9aa0270a18fdd1e6cd426c480c35f7de9d
git.kernel.orghttps://git.kernel.org/stable/c/71e9c53220abd7f5a45aa4d5e5b420d3479f3a4f
git.kernel.orghttps://git.kernel.org/stable/c/9fffa6465851a1910a6e9cb7272787dd615b26b1
git.kernel.orghttps://git.kernel.org/stable/c/fe23d56e9266d58ba5c380f1970118eedeee0b68
git.kernel.orghttps://git.kernel.org/stable/c/ce311bd2e36596f0aa2c92ca86fb3e019ac57eae
git.kernel.orghttps://git.kernel.org/stable/c/8874dafc9099bc49c2e5ebba030f85d276421f92
git.kernel.orghttps://git.kernel.org/stable/c/990348e5bb457697c2f1f7f7b65154a3334d9d2b

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
linux-6.12
Fixed in 6.12.111-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.111-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.