AUGUST 4, 2026
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Case File

CVE-2021-45931

MEDIUM · CVSS 6.5 EPSS 1.78% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-01 · 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.

GitHub PoC Links
github.com ↗ github.com ↗

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

CVE
CVE-2021-45931
Severity
MEDIUM
CVSS
6.5
EPSS
1.78%

Original NVD Description

HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).