7.5

CVE-2025-37954: linux

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2025-37954DEBIAN-CVE-2025-37954
Published 20-05-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-37954 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.37%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 34 · Related 32
MGASA-2025-0182MGASA-2025-0183SUSE-SU-2025:01964-1SUSE-SU-2025:01965-1SUSE-SU-2025:02000-1SUSE-SU-2025:02254-1

Timeline

  1. 20-05-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Avoid race in open_cached_dir with lease breaks A pre-existing valid cfid returned from find_or_create_cached_dir might race with a lease break, meaning open_cached_dir doesn't consider it valid, and thinks it's newly-constructed. This leaks a dentry reference if the allocation occurs before the queued lease break work runs. Avoid the race by extending holding the cfid_list_lock across find_or_create_cached_dir and when the result is checked.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

+0.03 pp

From 0.34% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.37%

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

Ubuntu144 products
  • linuxAll versions (No fix recorded) | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 81ba10959970d15c388bf29866b01b62f387e6a3, < 2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9 | ≥ 81ba10959970d15c388bf29866b01b62f387e6a3, < 571dcf3d27b24800c171aea7b5e04ff06d10e2e9 | ≥ 81ba10959970d15c388bf29866b01b62f387e6a3, < 2407265dc32bc8cc45b62a612c2a214ba9038e8b | ≥ 81ba10959970d15c388bf29866b01b62f387e6a3, < 3ca02e63edccb78ef3659bebc68579c7224a6ca2 | 436be190fbf81e5d84040dabf9cb7be06a94dc5d | ≥ 6.5.10, < 6.6 | 6.6
  • linux_kernel< 6.6.91 | ≥ 6.7, < 6.12.29 | ≥ 6.13, < 6.14.7 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5
Debian1 product
  • linux< 6.12.29-1

3 vendors · 147 products

References

29 links
Show all 29 references