What is CVE-2021-21943?

CVE-2021-21943 is a high-severity vulnerability in Accusoft Imagegear, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2022-04-14.

How severe is CVE-2021-21943?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Accusoft Imagegear

CVE-2021-21943

A heap-based buffer overflow vulnerability exists in the XWD parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Vulnerability class: Buffer Overflow

Published 2022-04-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.016 · change: +0.001

Affected products

Accusoft Imagegear — versions 19.10

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1373 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21943?: CVE-2021-21943 is a high-severity vulnerability in Accusoft Imagegear, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2022-04-14.
How severe is CVE-2021-21943?: High severity. CVSS v3 base score is 8.8 out of 10.