CVE-2021-27421 is a critical integer overflow vulnerability affecting NXP MCUXpresso SDK versions prior to 2.8.2. This flaw in the SDK_Malloc function allows attackers to access memory outside allocated bounds, potentially causing segmentation faults and unexpected system behavior. With a CVSS score of 9.8 (Critical), it can be exploited remotely with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.8.2CPE matchmatch criteria | cpe:2.3:a:nxp:mcuxpresso_software_development_kit:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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.
Remediation records are not available for this CVE.