AUGUST 4, 2026
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Case File

CVE-2021-34121

HIGH · CVSS 7.8 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-07-18 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

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

Detected Signals
code execution

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

CVE
CVE-2021-34121
Severity
HIGH
CVSS
7.8
EPSS
0.34%

Original NVD Description

An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.