SEPTEMBER 20, 2026
Live Feed
Back to database
Case File

CVE-2021-29477

HIGH · CVSS 7.5 EPSS 4.03% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-04 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-29477
Severity
HIGH
CVSS
7.5
EPSS
4.03%

Original NVD Description

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer could be exploited using the `STRALGO LCS` command to corrupt the heap and potentially result with remote code execution. The problem is fixed in version 6.2.3 and 6.0.13. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the `STRALGO LCS` command.

Related CVEs

Other vulnerabilities affecting the same vendor(s)