CVE-2021-22155Network attack vector

Target-account access via undisclosed SAML authentication bypass

Published May 12, 2021 · Updated Aug 3, 2024

Authentication bypass in BlackBerry Workspaces Server 10.1 and 9.1 and earlier allows remote authenticated users to access a targeted user’s account. The published record identifies the SAML Authentication component in Appliance-X deployments but does not disclose the request, token handling, or validation error that bypasses authentication. Network access and an authenticated session are required; successful exploitation grants the targeted account’s application access, while further actions remain unspecified.

CVSS severity8.8
High
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in BlackBerry Workspaces Server 10.1 and 9.1 and earlier allows remote authenticated users to access a targeted user’s account. The published record identifies the SAML Authentication component in Appliance-X deployments but does not disclose the request, token handling, or validation error that bypasses authentication. Network access and an authenticated session are required; successful exploitation grants the targeted account’s application access, while further actions remain unspecified.

The record

CVE
CVE-2021-22155
Published
May 12, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 12, 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

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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-287Improper Authentication

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

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Your stack

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