CVE-2021-26909

Automox Agent Guessable S3 Bucket Endpoint

3.7 Low

Automox Agent prior to version 31 uses an insufficiently protected S3 bucket endpoint for storing sensitive files, which could be brute-forced by an attacker to subvert an organization's security program. The issue has since been fixed in version 31 of the Automox Agent.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.73%Up 0.1 points since Apr 27, 2021

What each source reports

CVE List Score used 3.7

Automox Agent Guessable S3 Bucket Endpoint

Record: CVE-2021-26909
CVSS 3.1: 3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2021-13693 3.7

Record: EUVD-2021-13693
CVSS 3.1: 3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q9rr-9m3c-3r79 5.3

Automox Agent prior to version 31 uses an insufficiently protected S3 bucket endpoint for storing...

Record: GHSA-q9rr-9m3c-3r79
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-269, CWE-330
Updated: 2026-11-02

NVD 3.7

Record: CVE-2021-26909
CVSS 3.1: 3.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-284, CWE-330
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-26909 is a low vulnerability (CVSS 3.7) in Automox, published April 23, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. No source names a fixed version.