How severe is CVE-2021-22155?

CVE-2021-22155 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22155?

CVE-2021-22155 primarily affects Blackberry Workspaces Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22155 published?

CVE-2021-22155 was published on 2021-05-13 and last updated on 2026-06-17.

CVE-2021-22155

CVE-2021-22155 is a high-severity vulnerability in Blackberry Workspaces Server with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Blackberry Workspaces Server
Published: 2021-05-13
Last modified: 2026-06-17

Description

An Authentication Bypass vulnerability in the SAML Authentication component of BlackBerry Workspaces Server (deployed with Appliance-X) version(s) 10.1, 9.1 and earlier could allow an attacker to potentially gain access to the application in the context of the targeted user’s account.

Frequently asked questions

What is CVE-2021-22155?: An Authentication Bypass vulnerability in the SAML Authentication component of BlackBerry Workspaces Server (deployed with Appliance-X) version(s) 10.1, 9.1 and earlier could allow an attacker to potentially gain access to the application in the context of the targeted user’s account.
How severe is CVE-2021-22155?: CVE-2021-22155 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22155?: CVE-2021-22155 primarily affects Blackberry Workspaces Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22155 published?: CVE-2021-22155 was published on 2021-05-13 and last updated on 2026-06-17.

References

https://support.blackberry.com/kb/articleDetail?articleNumber=000078926

Affected products (2)

cpe:2.3:a:blackberry:workspaces_server:*:*:*:*:*:*:*:*
cpe:2.3:a:blackberry:workspaces_server:10.1:*:*:*:*:*:*:*

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