How severe is CVE-2021-34682?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Gov Imposto De Renda Da Pessoa Fisica 2021

CVE-2021-34682

Receita Federal IRPF 2021 1.7 allows a man-in-the-middle attack against the update feature.

Published 2021-06-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Gov Imposto De Renda Da Pessoa Fisica 2021 — versions 1.7

References

www.youtube.com/watch (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-34682?: CVE-2021-34682 is a low-severity vulnerability in Gov Imposto De Renda Da Pessoa Fisica 2021. CVSS score: 3.7/10. Published 2021-06-12.
How severe is CVE-2021-34682?: Low severity. CVSS v3 base score is 3.7 out of 10.