What is CVE-2021-27722?

CVE-2021-27722 is a medium-severity vulnerability in Nsasoft Spotauditor, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2021-11-02.

How severe is CVE-2021-27722?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Nsasoft Spotauditor

CVE-2021-27722

An issue was discovered in Nsasoft US LLC SpotAuditor 5.3.5. The program can be crashed by entering 300 bytes char data into the "Key" or "Name" field while registering.

Vulnerability class: Buffer Overflow

Published 2021-11-02 · last modified 2026-06-29.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.2% 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

Nsasoft Spotauditor — versions 5.3.5

Weakness classification (CWE)

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

References

www.exploit-db.com/exploits/49590 (VDB Entry, Third Party Advisory, Not Applicable)
www.exploit-db.com/exploits/49638 (VDB Entry, Third Party Advisory, Not Applicable)

Frequently asked questions

What is CVE-2021-27722?: CVE-2021-27722 is a medium-severity vulnerability in Nsasoft Spotauditor, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2021-11-02.
How severe is CVE-2021-27722?: Medium severity. CVSS v3 base score is 5.5 out of 10.