CVE-2021-32023: An elevation of privilege vulnerability in the message broker of BlackBerry Protect for Windows version(s) ver

Q: How do I fix CVE-2021-32023?

protect: upgrade to newer than 1574. Exact commands for each OS are on this page.

Q: Is CVE-2021-32023 being exploited?

CVE-2021-32023 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-32023 affect?

CVE-2021-32023 affects protect. Severity is high (CVSS 7.8). An elevation of privilege vulnerability in the message broker of BlackBerry Protect for Windows version(s) versions 1574 and earlier could allow an attacker to potentially execute code in the context of a BlackBerry Cylance service that has

Routine

HIGH 7.8UPGRADE

CVE-2021-32023 is a high-severity flaw (CVSS 7.8) affecting protect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An elevation of privilege vulnerability in the message broker of BlackBerry Protect for Windows version(s) versions 1574 and earlier could allow an attacker to potentially execute code in the context of a BlackBerry Cylance service that has admin rights on the system.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Published	2021-11-10
Last modified	2026-06-17

Publisher (CNA): BlackBerry · Vendor: blackberry

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-11-10 18:15 UTCPublished CVE record published
2026-06-17 03:52 UTCUpdated Record last modified

blackberry protect UPGRADE

Affected: <= 1574

Fixed in: newer than 1574

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy protect || rpm -q protect || protect --version

2. UPGRADE to newer than 1574 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade protect

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade protect

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-32023?

protect: upgrade to newer than 1574. Exact commands for each OS are on this page.

Is CVE-2021-32023 being exploited?

CVE-2021-32023 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-32023 affect?

CVE-2021-32023 affects protect. Severity is high (CVSS 7.8). An elevation of privilege vulnerability in the message broker of BlackBerry Protect for Windows version(s) versions 1574 and earlier could allow an attacker to potentially execute code in the context of a BlackBerry Cylance service that has

How urgent is CVE-2021-32023?

Priority 33/100. High severity

Software pages

Windows vulnerabilities

Related CVEs

CVE-2022-31464 HIGH 7.8 DOWNGRADE Insecure permissions configuration in Adaware Protect v1.2.439.4251 allows attackers to escalate privileges vi
CVE-2021-32022 MEDIUM 5.5 UPGRADE A low privileged delete vulnerability using CEF RPC server of BlackBerry Protect for Windows version(s) versio
CVE-2021-32021 HIGH 7.8 UPGRADE A denial of service vulnerability in the message broker of BlackBerry Protect for Windows version(s) versions

References

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