CVE-2026-53361

highpriority · track · 10EPSS 0.002 · 7 %ileexploit · PoCDEEUFRRUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · PoC
Likely / severe?
0.18% (7th) EPSS
CVSS 7.1 · high
Is it mine?
51 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() unix_schedule_gc() `- if (!gc_in_progress) `- if (!gc_in_progress) |- gc_in_progress = true | `- queue_work() | unix_gc() <----------------/ | | |- gc_in_progress = true ... `- queue_work() | | `- gc_in_progress = false | | unix_gc() <---------------------------------------------' | ... /* gc_in_progress == false */ | `- gc_in_progress = false unix_peek_fpl() relies on gc_in_progress not to confuse GC by MSG_PEEK. Let's set gc_in_progress to true in unix_gc().

01

cvss

Technical severity, 0–10. One row per scoring source.

7.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–7.1

v3.17.1highAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · ENISA EU
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondaryexploitability 1.8 · impact 5.2
v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USCWE-825US
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (51)

Products and version ranges known to be affected.

showing 20 of 51
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-2208Linux Kernel: Mehrere SchwachstellenDeutsch2026-07-05csaf · cert_bundDE

    Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um Speicherbeschädigungen zu verursachen, Kernel-Speicher offenzulegen oder Denial-of-Service-Zustände auszulösen.

  • CERTFR-2026-AVI-1333Multiples vulnérabilités dans le noyau Linux d'UbuntuFrançais2026-10-16vendor · certfrFR
07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcertfrNVDCVE.orgMITRE
published 2026-07-04modified 2026-10-19
09

references (14)

External citations — patches, advisories, analysis.

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