7.8

CVE-2025-38403: vsock/vmci: Clear the vmci transport packet properly when initializing it

Analyzed
AliasesUBUNTU-CVE-2025-38403DEBIAN-CVE-2025-38403
Published 25-07-2025Last modified 11-06-2026

Vulnerability summary

CVE-2025-38403 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · +0.03 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 58 · Related 48
DLA-4327-1DLA-4328-1DSA-5973-1MGASA-2025-0218MGASA-2025-0219OPENSUSE-SU-2025:20081-1

Timeline

  1. 25-07-2025
    PublishedVulnerability first disclosed.
  2. 11-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.19% 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

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu146 products
  • linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 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≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 19c2cc01ff9a8031398a802676ffb0f4692dd95d | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 1c1bcb0e78230f533b4103e8cf271d17c3f469f0 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 2d44723a091bc853272e1a51a488a3d22b80be5e | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 0a01021317375b8d1895152f544421ce49299eb1 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 94d0c326cb3ee6b0f8bd00e209550b93fcc5c839 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 75705b44e0b9aaa74f4c163d93d388bcba9e386a | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < e9a673153d578fd439919a24e99851b2f87ecbce | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 223e2288f4b8c262a864e2c03964ffac91744cd5 | 3.9
  • linux_kernel≥ 3.9, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.187 | ≥ 5.16, < 6.1.144 | ≥ 6.2, < 6.6.97 | ≥ 6.7, < 6.12.37 | ≥ 6.13, < 6.15.6 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4

3 vendors · 150 products

References

46 links
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