9.1

CVE-2023-32249: linux

CVSS: 9.1v3.1CriticalModified
AliasesUBUNTU-CVE-2023-32249DEBIAN-CVE-2023-32249
Published 16-08-2025Last modified 15-08-2026
Open JSON

Vulnerability summary

CVE-2023-32249 is a critical (CVSS 9.1) vulnerability in linux. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.36%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-08-2025
    PublishedVulnerability first disclosed.
  2. 15-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: not allow guest user on multichannel This patch return STATUS_NOT_SUPPORTED if binding session is guest.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

+0.01 pp

From 0.35% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu107 products
  • linux< 5.15.0-83.92
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1044.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ f5a544e3bab78142207e0242d22442db85ba1eff, < ed76d3a8910be06cd4e4ba63bf6075bf903945a1 | ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 1f0490586544455e5be698be2e6c30077b4ec461 | ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 4a98e859c4673013385a54084e0cd865695ca072 | ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 088131b7b01099720a528a72005ff17868705d40 | ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 3353ab2df5f68dab7da8d5ebb427a2d265a1f2b2 | 5.15
  • linux_kernel≥ 5.15, < 5.15.112 | ≥ 5.16, < 6.1.28 | ≥ 6.2, < 6.2.15 | ≥ 6.3, < 6.3.2
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1

3 vendors · 110 products

References

9 links