9.8

CVE-2024-58087: ksmbd: fix racy issue from session lookup and expire

Modified
AliasesUBUNTU-CVE-2024-58087DEBIAN-CVE-2024-58087
Published 12-03-2025Last modified 05-08-2026

Vulnerability summary

CVE-2024-58087 is a critical (CVSS 9.8) Improper Locking vulnerability in linux. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.7% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.51%
0%100%
Low · +0.01 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 25 · Related 27
USN-7379-1USN-7381-1USN-7382-1USN-7387-1USN-7387-2USN-7387-3

Timeline

  1. 12-03-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.50% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu123 products
  • linux< 5.15.0-135.146 | < 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1080.87 | < 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 2107ab40629aeabbec369cf34b8cf0f288c3eb1b | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 37a0e2b362b3150317fb6e2139de67b1e29ae5ff | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 450a844c045ff0895d41b05a1cbe8febd1acfcfd | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < a39e31e22a535d47b14656a7d6a893c7f6cf758c | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < b95629435b84b9ecc0c765995204a4d8a913ed52 | 5.15
  • linux_kernel≥ 5.15.145, < 5.15.176 | ≥ 6.1.29, < 6.1.121 | ≥ 6.2.16, < 6.3 | ≥ 6.3.2, < 6.4 | ≥ 6.7, < 6.12.6 | 6.13:rc1 | 6.13:rc2
Debian1 product
  • linux< 6.1.123-1 | < 6.12.6-1

3 vendors · 126 products

References

37 links
Show all 37 references