CVE-2021-22894
published 2021-05-27CVE-2021-22894: A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root…
PriorityP185high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
EPSS
41.28%
98.5th percentile
A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root user via maliciously crafted meeting room.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ivanti | connect_secure | — | — |
| ivanti | connect_secure | — | — |
| ivanti | pulse_connect_secure | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability is exploited via a maliciously crafted meeting room request by a remote authenticated user, targeting the Pulse Connect Secure Collaboration Suite component ↗
- →Successful exploitation results in code execution as root; monitor for unexpected root-level process spawning from Pulse Connect Secure service processes ↗
- ·Vulnerability affects Pulse Connect Secure versions before 9.1R11.4; ensure patching to 9.1R11.4 or later per vendor guidance ↗
- ·This CVE is listed in the CISA Known Exploited Vulnerabilities catalog and was subject to Emergency Directive ED 21-03, indicating active in-the-wild exploitation ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
vulncheck8.8HIGH
cisa8.8HIGH
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CISA
Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
cisa·2021-11-03·CVSS 8.8
CVE-2021-22894 [HIGH] CWE-94 Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
Vulnerability: Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
Affected: Ivanti Pulse Connect Secure
Ivanti Pulse Connect Secure Collaboration Suite contains a buffer overflow vulnerabilities that allows a remote authenticated users to execute code as the root user via maliciously crafted meeting room.
Required Action: Apply updates per vendor instructions.
Notes: Reference CISA's ED 21-03 (https://www.cisa.gov/news-events/directives/ed-21-03-mitigate-pulse-connect-secure-product-vulnerabilities) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-03. https://nvd.nist.gov/vuln/detail/CVE-2021-22894
Remediation Due Date: 2022-05-03
Ivanti
Pulse Connect Secure Buffer Overflow
vendor_ivanti·2021-11-03·CVSS 8.8
CVE-2021-22894 [HIGH] Pulse Connect Secure Buffer Overflow
Pulse Connect Secure Buffer Overflow
Ivanti Pulse Connect Secure Collaboration Suite contains a buffer overflow vulnerabilities that allows a remote authenticated users to execute code as the root user via maliciously crafted meeting room.
CVE IDs: CVE-2021-22894
Affected products: Pulse Connect Secure
This vulnerability is listed in the CISA Known Exploited Vulnerabilities catalog.
Required Action: Apply updates per vendor instructions.
Remediation Due Date: 2022-05-03
GHSA
GHSA-2f6h-jr2m-2vpj: A buffer overflow vulnerability exists in Pulse Connect Secure before 9
ghsa_unreviewed·2022-05-24
CVE-2021-22894 [HIGH] CWE-119 GHSA-2f6h-jr2m-2vpj: A buffer overflow vulnerability exists in Pulse Connect Secure before 9
A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root user via maliciously crafted meeting room.
VulnCheck
Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
vulncheck·2021·CVSS 8.8
CVE-2021-22894 [HIGH] CWE-94 Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
Ivanti Pulse Connect Secure Collaboration Suite Buffer Overflow Vulnerability
Ivanti Pulse Connect Secure Collaboration Suite contains a buffer overflow vulnerabilities that allows a remote authenticated users to execute code as the root user via maliciously crafted meeting room.
Affected: Ivanti Connect Secure and Policy Secure
Required Action: Apply updates per vendor instructions.
Exploitation References: https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a; https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
Remediation Due: 2022-05-03
No detection rules found.
No public exploits indexed.
Tenable
CVE-2025-0282: Ivanti Connect Secure Zero-Day Vulnerability Exploited In The Wild
blogs_tenable·2025-01-08·CVSS 9.0
[CRITICAL] CVE-2025-0282: Ivanti Connect Secure Zero-Day Vulnerability Exploited In The Wild
## Cloud Exposure
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Tenable Cloud Vulnerability Management Request a demo
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## Vulnerability Exposure
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Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
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## AI Exposure
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## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Tenable
CVE-2023-46805, CVE-2024-21887: Zero-Day Vulnerabilities Exploited in Ivanti Connect Secure and Policy Secure Gateways
blogs_tenable·2024-01-10·CVSS 8.2
[HIGH] CVE-2023-46805, CVE-2024-21887: Zero-Day Vulnerabilities Exploited in Ivanti Connect Secure and Policy Secure Gateways
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Qualys
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
blogs_qualys·2022-02-23
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
#### Table of Contents
- Situation
- Directive Scope
- CISA Catalog of Known Exploited Vulnerabilities
- Detect CISA Vulnerabilities Using Qualys VMDR
- CISA Exploited RTI
- Detailed Operational Dashboard
- Remediation
- Federal Enterprises and Agencies Can Act Now
- Summary
- Getting Started
CISA released a directive in November 2021, recommending urgent and prioritized remediation of actively exploited vulnerabilities. Both government agencies and corporations should heed this advice. This blog outlines how Qualys Vulnerability Management, Detection & Response can be used by any organization to respond to this directive efficiently and effectively.
## Situation
Last November 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directiv
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01
blogs_qualys·2021-11-09
Qualys Response to CISA Alert: Binding Operational Directive 22-01
## Table of Contents
Overview
Directive Scope
CISA Catalog of Known Exploited Vulnerabilities
Detect CISAs Vulnerabilities Using Qualys VMDR
Remediation
Federal Enterprises and Agencies Can Act Now
Summary
Getting Started
Start your VMDR 30-day, no-cost trial today
## Overview
On November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directive 22-01 , “Reducing the Significant Risk of Known Exploited Vulnerabilities.” This directive recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to remediate
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01 | Qualys
blogs_qualys·2021-11-09
Qualys Response to CISA Alert: Binding Operational Directive 22-01 | Qualys
#### Table of Contents
- Overview
- Directive Scope
- CISA Catalog of Known Exploited Vulnerabilities
- Detect CISAs Vulnerabilities Using Qualys VMDR
- Remediation
- Federal Enterprises and Agencies Can Act Now
- Summary
- Getting Started
Start your VMDR 30-day, no-cost trial today
## Overview
On November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directive 22-01, “Reducing the Significant Risk of Known Exploited Vulnerabilities.” This directive recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to
Tenable
How Risk-based Vulnerability Management Can Help Address the Most Commonly Exploited Vulnerabilities Today
blogs_tenable·2021-07-30
How Risk-based Vulnerability Management Can Help Address the Most Commonly Exploited Vulnerabilities Today
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Qualys
CISA Alert: Top Routinely Exploited Vulnerabilities | Qualys
blogs_qualys·2021-07-29·CVSS 10.0
[CRITICAL] CISA Alert: Top Routinely Exploited Vulnerabilities | Qualys
#### Table of Contents
- Top Routinely Exploited Vulnerabilities
- Detect CISAs Top Routinely Exploited Vulnerabilities using Qualys VMDR
- Recommendations
- Remediation and Mitigation
- Get Started Now
On July 28, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a cybersecurity advisory detailing the top 30 publicly known vulnerabilities that have been routinely exploited by cyber threat actors in 2020 and 2021. Organizations are advised to prioritize and apply patches or workarounds for these vulnerabilities as soon as possible.
The advisory states, “If an organization is unable to update all software shortly after a patch is released, prioritize implementing patches for CVEs that are already known to be exploited or that would be accessible to the large
Qualys
CISA Alert: Top Routinely Exploited Vulnerabilities
blogs_qualys·2021-07-29·CVSS 9.1
[CRITICAL] CISA Alert: Top Routinely Exploited Vulnerabilities
## Table of Contents
Top Routinely Exploited Vulnerabilities
Detect CISAs Top Routinely Exploited Vulnerabilities using Qualys VMDR
Recommendations
Remediation and Mitigation
Get Started Now
On July 28, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a cybersecurity advisory detailing the top 30 publicly known vulnerabilities that have been routinely exploited by cyber threat actors in 2020 and 2021. Organizations are advised to prioritize and apply patches or workarounds for these vulnerabilities as soon as possible.
The advisory states, “If an organization is unable to update all software shortly after a patch is released, prioritize implementing patches for CVEs that are already known to be exploited or that would be accessible to the largest numbe
Tenable
CVE-2021-22893: Zero-Day Vulnerability in Pulse Connect Secure Exploited in the Wild
blogs_tenable·2021-04-20·CVSS 10.0
[CRITICAL] CVE-2021-22893: Zero-Day Vulnerability in Pulse Connect Secure Exploited in the Wild
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
2021-05-27
Published
2021-11-03
Added to CISA KEV
Exploited in the wild