CVE-2022-43680
HIGH 7.5EPSS 2.4%
In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.
- CVSS v3.1
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 2.44% chance of exploitation in the next 30 days, 83th percentile
- Published
- 2022-10-24
- Updated
- 2025-05-30
Proof-of-concept exploits (3)
- Nivaskumark/external_expat_AOSP10_r33_CVE-2022-436800★ · 2023-04-04
- Trinadh465/external_expat-2.1.0_CVE-2022-436800★ · 2022-12-15
- nidhihcl/external_expat_2.1.0_CVE-2022-436800★ · 2022-12-19