CVE-2021-27439 is a critical integer wrap-around vulnerability affecting TencentOS-tiny version 3.1.0. This flaw in the 'tos_mmheap_alloc' function allows for incorrect memory allocation calculations, potentially leading to arbitrary memory assignment. The vulnerability carries a CVSS score of 9.8 (CRITICAL) due to its network-exploitable nature, low attack complexity, and high impact on confidentiality, integrity, and availability, including the possibility of remote code execution. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.1.0CPE matchmatch criteria | cpe:2.3:o:tencent:tencentos-tiny:3.1.0:*:*:*:*:*:*:* |
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.