5.5

CVE-2023-53277: wifi: iwl3945: Add missing check for create_singlethread_workqueue

Modified
AliasesUBUNTU-CVE-2023-53277DEBIAN-CVE-2023-53277
Published 16-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53277 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
SUSE-SU-2025:03614-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:3716-1SUSE-SU-2025:3761-1

Timeline

  1. 16-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwl3945: Add missing check for create_singlethread_workqueue Add the check for the return value of the create_singlethread_workqueue in order to avoid NULL pointer dereference.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu121 products
  • linuxAll versions (No fix recorded) | < 5.4.0-152.169 | < 5.15.0-75.82
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1104.112 | < 5.15.0-1038.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ b481de9ca074528fe8c429604e2777db8b89806a, < 3ae2fc4de12686f3fe695824169c1272c9f798f7 | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 7e594abc0424e4f8c2385f11aefeaadcfc507aa5 | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 2f80b3ff92514ebd227e5c55d3d1e480401b02b7 | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 505c74c4c0b1c5bcaa98a93b3087c268156070f1 | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 34f611204ae589bd5c494b10b41fb13436bd3c3f | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 17e07d6587c55015956862ef3b101fd45fa49fbc | ≥ b481de9ca074528fe8c429604e2777db8b89806a, < 1fdeb8b9f29dfd64805bb49475ac7566a3cb06cb | 2.6.24
  • linux_kernel≥ 2.6.24, < 4.19.276 | ≥ 4.20, < 5.4.235 | ≥ 5.5, < 5.10.173 | ≥ 5.11, < 5.15.99 | ≥ 5.16, < 6.1.16 | ≥ 6.2, < 6.2.3
Debian1 product
  • linux< 6.1.20-1

3 vendors · 124 products

References

11 links
Show all 11 references