CVE-2021-25940

Name: CVE-2021-25940
Creator: NVD / NIST
Published: 2021-11-16T10:15:06.783+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 0.78%

Last modified Jun 17, 2026

CVE-2021-25940 is a high-severity vulnerability rated 8/10 on the CVSS scale. In ArangoDB, versions v3.7.6 through v3.8.3 are vulnerable to Insufficient Session Expiration. When a user’s password is changed by the administrator, the session isn’t invalidated, allowing a malicious user to still be logged in and perform arbitrary actions within the system.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.

Description

In ArangoDB, versions v3.7.6 through v3.8.3 are vulnerable to Insufficient Session Expiration. When a user’s password is changed by the administrator, the session isn’t invalidated, allowing a malicious user to still be logged in and perform arbitrary actions within the system.

Metrics

CVSS 3.1

8/10

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

EPSS Probability

0.78%

51.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Arangodb	Arangodb	>= 3.7.6, <= 3.8.3

References

https://github.com/arangodb/arangodb/commit/e9c6ee9dcca7b9b4fbcd02a0b323d205bee838d3Patch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25940Third Party Advisory
https://github.com/arangodb/arangodb/commit/e9c6ee9dcca7b9b4fbcd02a0b323d205bee838d3Patch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25940Third Party Advisory

Timeline

Published: Nov 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25940?

How severe is CVE-2021-25940?

CVE-2021-25940 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25940?

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-2021-25940?

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

Scan your code now

Source: NVD / NIST