CVE-2021-22511Network attack vector

Unauthenticated certificate validation bypass

Published Apr 8, 2021 · Updated Aug 3, 2024

Improper certificate validation in OpenText Application Automation Tools Plugin 6.7 and earlier allows attackers to disable SSL/TLS checks for Service Virtualization connections. The plugin unconditionally turns off certificate validation when connecting to Service Virtualization servers, accepting certificates that should fail trust verification. Any attacker able to influence or observe such a connection can enable man-in-the-middle interception, while the advisory does not report direct code execution or service interruption.

CVSS severity6.5
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper certificate validation in OpenText Application Automation Tools Plugin 6.7 and earlier allows attackers to disable SSL/TLS checks for Service Virtualization connections. The plugin unconditionally turns off certificate validation when connecting to Service Virtualization servers, accepting certificates that should fail trust verification. Any attacker able to influence or observe such a connection can enable man-in-the-middle interception, while the advisory does not report direct code execution or service interruption.

The record

CVE
CVE-2021-22511
Published
Apr 8, 2021
Updated
Aug 3, 2024
Vendor
OpenText
Product
OpenText Application Automation Tools Plugin
Classifications
CWE-295, T1557
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.7 and earlier versions.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenText · OpenText Application Automation Tools Pluginversion=6.7 and earlier versions.

Published CVSS scores

6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo