7.8

CVE-2025-37817: debian debian_linux Double Free

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-37817DEBIAN-CVE-2025-37817
Published 08-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-37817 is a high (CVSS 7.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 33 · Related 29

Timeline

  1. 08-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mcb: fix a double free bug in chameleon_parse_gdd() In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' would be released in mcb_device_register() via put_device(). Thus, goto 'err' label and free 'mdev' again causes a double free. Just return if mcb_device_register() fails.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

+0.01 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

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

Ubuntu140 products
  • linuxAll versions (No fix recorded) | < 5.15.0-144.157 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1088.95 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < d70184958b0ea8c0fd52e2b456654b503e769fc8 | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < 4ffe8c9fb561e4427dd1a3056cd5b3685b74f78d | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < 59f993cd36b6e28a394ba3d977e8ffe5c9884e3b | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < c5b8a549ef1fcc6066b037a3962c79d60465ba0b | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < 96838eb1836fd372e42be5db84f0b333b65146a6 | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < df1a5d5c6134224f9298e5189230f9d29ae50cac | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < bcc7d58ee5173e34306026bd01e1fbf75e169d37 | ≥ 3764e82e5150d87b205c10cd78a9c9ab86fbfa51, < 7c7f1bfdb2249f854a736d9b79778c7e5a29a150 | 3.15
  • linux_kernel≥ 3.15, < 5.4.293 | ≥ 5.5, < 5.10.237 | ≥ 5.11, < 5.15.181 | ≥ 5.16, < 6.1.136 | ≥ 6.2, < 6.6.89 | ≥ 6.7, < 6.12.26 | ≥ 6.13, < 6.14.5 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3

3 vendors · 144 products

References

44 links
Show all 44 references