CVE-2025-1788: rizinorg rizin utf8.c rz_utf8_encode heap-based overflow

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-01 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability, which was classified as critical, was found in rizinorg rizin up to 0.8.0. This affects the function rz_utf8_encode in the library /librz/util/utf8.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue.

Affected products

rizinorg rizin: through 0.8.0

References

https://github.com/rizinorg/rizin/issues/4910
https://github.com/rizinorg/rizin/issues/4910#issuecomment-2662963253
https://github.com/rizinorg/rizin/pull/4762
https://github.com/user-attachments/files/18817099/rz-bin-poc-01.zip
https://vuldb.com/?ctiid.298011
https://vuldb.com/?id.298011
https://vuldb.com/?submit.502345
https://github.com/rizinorg/rizin/issues/4910#issuecomment-2662963253

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