What is CVE-2021-47821?

CVE-2021-47821 is a high-severity vulnerability in Raimersoft Rarmaradio, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-01-16.

How severe is CVE-2021-47821?

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

Vulnerability in Raimersoft Rarmaradio

CVE-2021-47821

RarmaRadio 2.72.8 contains a denial of service vulnerability that allows attackers to crash the application by overflowing network configuration fields with large character buffers. Attackers can generate a 100,000 character buffer and pas…

EPSS: 0.000 (5.9th 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:H/I:N/A:N.

Affected products

Raimersoft Rarmaradio — versions 2.75.8

Weakness classification (CWE)

CWE-1284 — Improper Validation of Specified Quantity in Input

References

ExploitDB-49906 (exploit)
Vendor Homepage (product)
VulnCheck Advisory: RarmaRadio 2.72.8 - Denial of Service (third-party-advisory)

Frequently asked questions

What is CVE-2021-47821?: CVE-2021-47821 is a high-severity vulnerability in Raimersoft Rarmaradio, classified under Improper Validation of Specified Quantity in Input. CVSS score: 7.5/10. Published 2026-01-16.
How severe is CVE-2021-47821?: High severity. CVSS v3 base score is 7.5 out of 10.