CVE-2021-3850

Name: CVE-2021-3850
Creator: NVD / NIST
Published: 2022-01-25T15:15:08.013+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 2.17%

Last modified Jun 17, 2026

CVE-2021-3850 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Authentication Bypass by Primary Weakness in GitHub repository adodb/adodb prior to 5.20.21.. EPSS estimates a 2.17% chance of exploitation in the next 30 days.

Description

Authentication Bypass by Primary Weakness in GitHub repository adodb/adodb prior to 5.20.21.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

2.17%

80.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Adodb Project	Adodb	<= 5.20.21
Debian	Debian Linux	9.0

References

https://github.com/adodb/adodb/commit/952de6c4273d9b1e91c2b838044f8c2111150c29Patch, Third Party Advisory
https://huntr.dev/bounties/bdf5f216-4499-4225-a737-b28bc6f5801cExploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/02/msg00006.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2022/dsa-5101Third Party Advisory
https://github.com/adodb/adodb/commit/952de6c4273d9b1e91c2b838044f8c2111150c29Patch, Third Party Advisory
https://huntr.dev/bounties/bdf5f216-4499-4225-a737-b28bc6f5801cExploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/02/msg00006.htmlMailing List, Third Party Advisory
https://www.debian.org/security/2022/dsa-5101Third Party Advisory

Timeline

Published: Jan 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3850?

Authentication Bypass by Primary Weakness in GitHub repository adodb/adodb prior to 5.20.21.

How severe is CVE-2021-3850?

CVE-2021-3850 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 2.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3850?

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-2021-3850?

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

Scan your code now

Source: NVD / NIST