CVE-2021-25900 is a critical heap-based buffer overflow vulnerability (CWE-787) affecting the smallvec crate in Rust, specifically versions prior to 0.6.14 and 1.x prior to 1.6.1, as well as the Servo project. This flaw, rated 9.8 CRITICAL (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability with low attack complexity. Despite its severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.6.3, < 0.6.14CPE matchmatch criteria | cpe:2.3:a:servo:smallvec:*:*:*:*:*:rust:*:* | ||
>= 1.0.0, < 1.6.1CPE matchmatch criteria | cpe:2.3:a:servo:smallvec:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.