Double Free in Apple Ipados

CVE-2022-40304

An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.

Vulnerability class: Double Free

EPSS: 0.068 (93.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-40304?
CVE-2022-40304 is a high-severity vulnerability in Apple Ipados, classified under Double Free. CVSS score: 7.8/10. Published 2022-11-23.
How severe is CVE-2022-40304?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-40304 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.