What is CVE-2021-21871?

CVE-2021-21871 is a high-severity vulnerability in Poweriso, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-06-29.

How severe is CVE-2021-21871?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Poweriso

CVE-2021-21871

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.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (58.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Poweriso — versions 7.9
N/a Poweriso — versions PowerISO 7.9

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21871?: CVE-2021-21871 is a high-severity vulnerability in Poweriso, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-06-29.
How severe is CVE-2021-21871?: High severity. CVSS v3 base score is 7.8 out of 10.