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Vulnerability record · CVE-2021-21832 · published 17 August 2021

CVE-2021-21832: Disc-soft daemon tools integer overflow vulnerability

Disc Soft · Daemon Tools

A memory corruption vulnerability exists in the ISO Parsing functionality of Disc Soft Ltd Deamon Tools Pro 8.3.0.0767. A specially crafted malformed file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 34.3% CWE-680 · CWE-680CWE-190 · Integer overflow
9.8CVSS 3.1 base score, v2 7.5
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A memory corruption vulnerability exists in the ISO Parsing functionality of Disc Soft Ltd Deamon Tools Pro 8.3.0.0767. A specially crafted malformed file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1295 ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1295 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-8398DAEMON Tools Lite installers trojanized via supply chain compromiseAttackers breached AVB Disc Soft's build or distribution infrastructure and trojanized three signed binaries (DTHelper.exe, DiscSoftBusServiceLite.ex…KEVEPSS 0.96%analysed

Source: NIST National Vulnerability Database (record CVE-2021-21832), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.