USN-8644-1: linux Ubuntu

CVSS: UnknownPublished
Published 18-08-2026Last modified 19-08-2026
Open JSON

Vulnerability summary

USN-8644-1 is a vulnerability in linux Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 7
CVE-2026-43071CVE-2026-52914CVE-2026-52993CVE-2026-53043CVE-2026-53224CVE-2026-53246

Timeline

  1. 18-08-2026
    PublishedVulnerability first disclosed.
  2. 19-08-2026
    Last modifiedVulnerability information updated.

Description

linux, linux-aws, linux-aws-fips, linux-aws-hwe, linux-fips, linux-hwe, linux-kvm vulnerabilities Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP protocol; - TIPC protocol; (CVE-2026-43071, CVE-2026-52914, CVE-2026-52993, CVE-2026-53043, CVE-2026-53224, CVE-2026-53246, CVE-2026-53309)

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

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

Ubuntu7 products
  • linux< 4.15.0-257.269
  • linux-aws< 4.15.0-1196.209
  • linux-aws-fips< 4.15.0-2134.140
  • linux-aws-hwe< 4.15.0-1196.209~16.04.1
  • linux-fips< 4.15.0-1151.163

1 vendor · 7 products

References

8 links