What is CVE-2021-47797?

CVE-2021-47797 is a high-severity vulnerability in Leawo Prof. Media, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-01-16.

How severe is CVE-2021-47797?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Leawo Prof. Media

CVE-2021-47797

Leawo Prof. Media 11.0.0.1 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized payload in the activation keycode field. Attackers can generate a 6000-byte buffer of repeated c…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (28.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Leawo Prof. Media — versions 11.0.0.1

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47797?: CVE-2021-47797 is a high-severity vulnerability in Leawo Prof. Media, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2026-01-16.
How severe is CVE-2021-47797?: High severity. CVSS v3 base score is 7.5 out of 10.