What’s Vulnerable › Vulnerabilities

CVE-2021-43814: Heap-based OOB write when parsing dwarf DIE info in Rizin

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-13 · updated 2026-06-17
• Weakness: CWE-787

Description

Rizin is a UNIX-like reverse engineering framework and command-line toolset. In versions up to and including 0.3.1 there is a heap-based out of bounds write in parse_die() when reversing an AMD64 ELF binary with DWARF debug info. When a malicious AMD64 ELF binary is opened by a victim user, Rizin may crash or execute unintended actions. No workaround are known and users are advised to upgrade.

Affected products

• rizinorg rizin: through 0.3.1

References

• https://github.com/rizinorg/rizin/commit/aa6917772d2f32e5a7daab25a46c72df0b5ea406
• https://github.com/rizinorg/rizin/issues/2083
• https://github.com/rizinorg/rizin/security/advisories/GHSA-hqqp-vjcm-mw8r
• https://github.com/rizinorg/rizin/commit/aa6917772d2f32e5a7daab25a46c72df0b5ea406
• https://github.com/rizinorg/rizin/issues/2083
• https://github.com/rizinorg/rizin/security/advisories/GHSA-hqqp-vjcm-mw8r

Get alerted when CVE-2021-43814 or the next vulnerability affects your stack