AUGUST 4, 2026
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Case File

CVE-2021-27439

HIGH · CVSS 7.3 EPSS 1.46%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-05-03 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.3. It may be remotely exploitable.

CVE
CVE-2021-27439
Severity
HIGH
CVSS
7.3
EPSS
1.46%

Original NVD Description

TencentOS-tiny version 3.1.0 is vulnerable to integer wrap-around in function 'tos_mmheap_alloc incorrect calculation of effective memory allocation size. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Related CVEs

Other vulnerabilities affecting the same vendor(s)