7.5

CVE-2026-6732: ibm aix Type Confusion

CVSS: 7.5v3.1HighAnalyzed
AliasesALPINE-CVE-2026-6732MGASA-2026-0248UBUNTU-CVE-2026-6732
Published 23-04-2026Last modified 31-08-2026
Open JSON

Vulnerability summary

CVE-2026-6732 is a high (CVSS 7.5) Type Confusion vulnerability in ibm aix. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.94%
0%100%
Low · +0.31 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
OPENSUSE-SU-2026:21317-1RHSA-2026:11503SUSE-SU-2026:22596-1SUSE-SU-2026:22636-1USN-8460-1

Timeline

  1. 23-04-2026
    PublishedVulnerability first disclosed.
  2. 31-08-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.94%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

+0.31 pp

From 0.63% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.94%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.gnome.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Redhat4 products
Ibm2 products
  • aix≥ 7.2.5, < 7.2.5.12 | ≥ 7.3.2, < 7.3.3.3 | 7.3.4
  • vios≥ 4.1.0, < 4.1.1.30 | 4.1.2.0
Alpine1 product
  • libxml2≥ 2.13.0, < 2.13.9-r1 | ≥ 2.13.0, < 2.13.9-r2
Debian1 product
  • libxml2< 2.15.3+dfsg-1
Mageia1 product
  • libxml2< 2.15.1-3.1.mga10
Ubuntu1 product
  • libxml2< 2.14.5+dfsg-0.2ubuntu0.2 | < 2.15.2+dfsg-0.1ubuntu0.1
Xmlsoft1 product

7 vendors · 11 products

References

12 links
Show all 12 references