CVE-2021-32077

Name: CVE-2021-32077
Creator: NVD / NIST
Published: 2021-05-06T23:15:07.85+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.22%

Last modified Jun 17, 2026

CVE-2021-32077 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Primary Source Verification in VerityStream MSOW Solutions before 3.1.1 allows an anonymous internet user to discover Social Security Number (SSN) values via a brute-force attack on a (sometimes hidden) search field, because the last four SSN digits are part of the supported combination of search selectors. This discloses doctors' and nurses' social security numbers and PII.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

Primary Source Verification in VerityStream MSOW Solutions before 3.1.1 allows an anonymous internet user to discover Social Security Number (SSN) values via a brute-force attack on a (sometimes hidden) search field, because the last four SSN digits are part of the supported combination of search selectors. This discloses doctors' and nurses' social security numbers and PII.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.22%

64.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Veritystream	Msow Solutions	< 3.1.1

References

https://www.marbasec.com/blog/cve-2021-32077-fun-with-social-security-numbersExploit, Third Party Advisory
https://www.veritystream.com/legacy/msow-solutionsVendor Advisory
https://www.marbasec.com/blog/cve-2021-32077-fun-with-social-security-numbersExploit, Third Party Advisory
https://www.veritystream.com/legacy/msow-solutionsVendor Advisory

Timeline

Published: May 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32077?

How severe is CVE-2021-32077?

CVE-2021-32077 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32077?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32077?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST