How severe is CVE-2023-21520?

CVE-2023-21520 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-21520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21520?

CVE-2023-21520 affects Blackberry Athoc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-21520?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-21520 published?

CVE-2023-21520 was published on 2023-09-12 and last updated on 2026-06-17.

CVE-2023-21520

CVE-2023-21520 is a medium-severity vulnerability in Blackberry Athoc with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Blackberry Athoc
Published: 2023-09-12
Last modified: 2026-06-17

Description

A PII Enumeration via Credential Recovery in the Self Service (Credential Recovery) of BlackBerry AtHoc version 7.15 could allow an attacker to potentially associate a list of contact details with an AtHoc IWS organization.

Frequently asked questions

What is CVE-2023-21520?: A PII Enumeration via Credential Recovery in the Self Service (Credential Recovery) of BlackBerry AtHoc version 7.15 could allow an attacker to potentially associate a list of contact details with an AtHoc IWS organization.
How severe is CVE-2023-21520?: CVE-2023-21520 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-21520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21520?: CVE-2023-21520 affects Blackberry Athoc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21520 published?: CVE-2023-21520 was published on 2023-09-12 and last updated on 2026-06-17.

References

https://http://support.blackberry.com/kb/articleDetail?articleNumber=000112406

Affected products (1)

cpe:2.3:a:blackberry:athoc:7.15:*:*:*:*:*:*:*

More vulnerabilities in Blackberry Athoc

CVE-2023-21521 — High (CVSS 7.2): An SQL Injection vulnerability in the Management Console  (Operator Audit Trail) of BlackBerry AtHoc version 7.15…
CVE-2023-21522 — Medium (CVSS 6.1): A Reflected Cross-site Scripting (XSS) vulnerability in the Management Console (Reports) of BlackBerry AtHoc version…
CVE-2019-8997 — Medium (CVSS 5.9): An XML External Entity Injection (XXE) vulnerability in the Management System (console) of BlackBerry AtHoc versions…
CVE-2023-21523 — Medium (CVSS 5.4): A Stored Cross-site Scripting (XSS) vulnerability in the Management Console (User Management and Alerts) of BlackBerry…
CVE-2025-12766 — Medium (CVSS 5.0): An Insecure Direct Object Reference (IDOR) vulnerability in the Management Console of BlackBerry® AtHoc® (OnPrem)…
CVE-2024-51723 — Medium (CVSS 4.6): A Stored Cross-Site Scripting (XSS) vulnerability in the Management Console of BlackBerry AtHoc version 7.15 could…

All CVEs affecting Blackberry Athoc →