CVE-2021-41253 is a heap buffer overflow vulnerability affecting Zydis versions v3.2.0 and older, specifically when users append untrusted data to the formatter buffer within custom formatter hooks using zycore string functions. This flaw stems from improper initialization of string objects, leading to incorrect size calculations and potential memory corruption. With a CVSS score of 8.1 (HIGH), this vulnerability presents a significant risk, allowing for high impact to confidentiality, integrity, and availability with a network attack vector and high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.2.0CPE matchmatch criteria | cpe:2.3:a:zyantific:zydis:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.