01 Record

CVE-2026-72493

net: serialize netif_running() check in enqueue_to_backlog()

CriticalPUBLISHEDCNA: Linux

CNA base score9.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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02 Description

net: serialize netif_running() check in enqueue_to_backlog()

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

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 34.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-10-21.

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

2026-10-21 12:45Z8 DAYS AGO

Reserved

2026-08-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

efc941115dae4c64371fb9f2699f46635542040a39d2d30278bea37af8fb11a4

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe9e4dd3267d0c5234c5c0f47440456b10875dec9 to < cbe10ea090ea9d6fa5ff50c9b44f2a86fe56f0b7, e9e4dd3267d0c5234c5c0f47440456b10875dec9 to < b422e3eff0edf0975de4883929adbed28f9d08bc, e9e4dd3267d0c5234c5c0f47440456b10875dec9 to < 2fface6e0bbd6314d1d9d071abf2c4d67548511c, e9e4dd3267d0c5234c5c0f47440456b10875dec9 to < 46762cefe7f4e5bffc1eb467810a7bbb02e461d7, 78b6803a1961369d0b8350ff1f99b7375bbd7a8f, b5d73d9cdd6be22795499890ea928a6f57ef829c, f6533fed1bfa842e391ee50f9a9c5e963c71e579, 2095ab2456da766174cda8bc105d7a7b1bc70e16, f1fdb184aefa8447560e3ea0e605171592ffee41, f75c8a3015422128ca150e81c730bc2a471b5f4a, 3.2.71 to < 3.3, 3.4.111 to < 3.5, 3.12.48 to < 3.13, 3.14.54 to < 3.15, 3.18.22 to < 3.19, 4.1.9 to < 4.2, 4.2—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cbe10ea090ea9d6fa5ff50c9b44f2a86fe56f0b7
git.kernel.orghttps://git.kernel.org/stable/c/b422e3eff0edf0975de4883929adbed28f9d08bc
git.kernel.orghttps://git.kernel.org/stable/c/2fface6e0bbd6314d1d9d071abf2c4d67548511c
git.kernel.orghttps://git.kernel.org/stable/c/46762cefe7f4e5bffc1eb467810a7bbb02e461d7

07 Fixed in

Debian 12

linux
No fix yet

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

Debian 13

linux
No fix yet

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.