CVE-2021-43609

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

2.02% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 79.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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

2023-11-08 00:00Z2 YR AGO

Last updated

2024-09-17 13:02Z1 YR AGO

Reserved

2021-11-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')Base

Data version

5.1

Document digest

6274220c2c3a967f69715227f310e6151b63bb80ba71e5323682ddbd3012d744

• www.linkedin.comhttps://www.linkedin.com/pulse/cve-2021-43609-write-up-division5-security-4lgwe
• github.comhttps://github.com/d5sec/CVE-2021-43609-POC
• community.spiceworks.comhttps://community.spiceworks.com/blogs/help-desk-server-release-notes/3610-1-3-2-1-3-3