CVE-2021-39553

PoC —

CVSS 3.1

5.5 medium

EPSS

<1%p49

Published

Sep 20, 2021 (Sep 20, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function grealloc() located in gmem.cc. It allows an attacker to cause Denial of Service.

Vendors: swftools
Products: swftools
Weakness: CWE-476
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

In the news0 stories

No ingested article mentions this CVE yet.