CVE-2021-25940

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.78% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 53.3% of scored records. A rank, not a probability.

NVD base score

8.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-11-16 09:25Z4 YR AGO

Last updated

2025-04-30 15:45Z1 YR AGO

Reserved

2021-01-22

Assigning CNA

Mend

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-613Insufficient Session ExpirationBase

Data version

5.1

Document digest

f2571feb7d514c96ece548f2d093871093a6b4551bedd59b9730ca014689d1a9

• github.comhttps://github.com/arangodb/arangodb/commit/e9c6ee9dcca7b9b4fbcd02a0b323d205bee838d3x_refsource_MISC
• www.whitesourcesoftware.comhttps://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25940x_refsource_MISC