Vulnerability · Published Jun 29, 2021 · Assigned by talos

CVE-2021-21871

High 8.8

In plain English

A high-severity out-of-bounds write in PowerISO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)0.9%top 38.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A memory corruption vulnerability exists in the DMG File Format Handler functionality of PowerISO 7.9. A specially crafted DMG file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability. The vendor fixed it in a bug-release of the current version.

Affected products (as reported)

Vendor	Product	Versions
n/a	PowerISO	PowerISO 7.9

Weakness: CWE-787 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1308 x_refsource_MISC