5.5

CVE-2025-39678: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-39678DEBIAN-CVE-2025-39678
Published 05-09-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-39678 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 4.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 26 · Related 26
OPENSUSE-SU-2025:20081-1SUSE-SU-2025:03600-1SUSE-SU-2025:03601-1SUSE-SU-2025:03602-1SUSE-SU-2025:03633-1SUSE-SU-2025:03634-1

Timeline

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

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL If metric table address is not allocated, accessing metrics_bin will result in a NULL pointer dereference, so add a check.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

0.00 pp

From 0.15% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

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

Affected systems

Ubuntu122 products
  • linux< 6.8.0-106.106
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1050.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5150542b8ec5fb561be080ed0ef3bab8598154c3, < 782977c0d8ba432b6fd3d5d0d87016a523ec1c69 | ≥ 5150542b8ec5fb561be080ed0ef3bab8598154c3, < d47782d5c0cb87b9826041f34505580204ccf703 | ≥ 5150542b8ec5fb561be080ed0ef3bab8598154c3, < 2c78fb287e1f430b929f2e49786518350d15605c | 6.7
  • linux_kernel≥ 6.7, < 6.12.56 | ≥ 6.13, < 6.16.4 | 6.17:rc1 | 6.17:rc2
Debian1 product
  • linux< 6.12.57-1 | < 6.16.5-1

3 vendors · 125 products

References

17 links
Show all 17 references