USN-8872-1: libxmltok Ubuntu

CVSS: UnknownPublished
Published 05-10-2026Last modified 06-10-2026
Open JSON

Vulnerability summary

USN-8872-1 is a vulnerability in libxmltok 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 2 · Downstream 0 · Related 2
CVE-2026-56404CVE-2026-56405

Timeline

  1. 05-10-2026
    PublishedVulnerability first disclosed.
  2. 06-10-2026
    Last modifiedVulnerability information updated.

Description

libxmltok vulnerabilities It was discovered that Expat, contained with the xmltok library did not correctly handle certain integer arithmetic. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly cause a denial of service. (CVE-2026-56404, CVE-2026-56405)

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

Ubuntu1 product
  • libxmltok< 1.2-3ubuntu0.1~esm1 | < 1.2-4ubuntu0.18.04.1~esm7 | < 1.2-4ubuntu0.20.04.1~esm7 | < 1.2-4ubuntu0.22.04.1~esm7 | < 1.2-4.1ubuntu2.24.0.4.1+esm5

1 vendor · 1 product

References

3 links