Authenticated root code execution via meeting-room overflow
Published May 27, 2021 · Updated Oct 21, 2025
A buffer overflow in Pulse Connect Secure Collaboration Suite before 9.1R11.4 allows remote authenticated users to execute code as root. The public record identifies maliciously crafted meeting-room input as the trigger but does not disclose the affected routine, buffer, or unchecked operation. Access to authenticated Collaboration Suite meeting-room functionality is required, and successful exploitation grants full control of the appliance.
Summary
What happened
A buffer overflow in Pulse Connect Secure Collaboration Suite before 9.1R11.4 allows remote authenticated users to execute code as root. The public record identifies maliciously crafted meeting-room input as the trigger but does not disclose the affected routine, buffer, or unchecked operation. Access to authenticated Collaboration Suite meeting-room functionality is required, and successful exploitation grants full control of the appliance.
The record
- CVE
- CVE-2021-22894
- Published
- May 27, 2021
- Updated
- Oct 21, 2025
- Vendor
- Pulse Secure
- Product
- Pulse Connect Secure
- Classifications
- CWE-119, CWE-94, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 27, 2021CVE publishedPublication date reported by the CVE source.
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Fixed version 9.1R11.4
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Reported exploitation
- CISA Known Exploited Vulnerabilities Catalog listingknown exploited catalog
Technologies
Your stack
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Your stack
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