CVE-2021-22899: Ivanti Pulse Connect Secure Command Injection Vulnerability
Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-9bb618b04564, updated 2026-11-02T23:39:54.475Z.
CISA Known Exploited Vulnerabilities
- Name
- Ivanti Pulse Connect Secure Command Injection Vulnerability
- Vendor
- Ivanti
- Product
- Pulse Connect Secure
- Added to the catalog
- 2021-11-03
- Due date for US federal agencies
- 2022-05-03
- Weaknesses
- CWE-77
- Catalog version
- 2026.10.30
Ivanti Pulse Connect Secure contains a command injection vulnerability that allows remote authenticated users to perform remote code execution via Windows File Resource Profiles.
Required action (CISA)
Apply updates per vendor instructions.
Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.
Links in CISA's notes
- https://www.cisa.gov/news-events/directives/ed-21-03-mitigate-pulse-connect-secure-product-vulnerabilities)
- https://nvd.nist.gov/vuln/detail/CVE-2021-22899
Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
NVD analysis
- Status
- Analyzed
- Published
- 2021-05-27T12:15:07.963
- Last modified
- 2026-06-17T03:37:58.977
- Weaknesses
- CWE-77
A command injection vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to perform remote code execution via Windows Resource Profiles Feature
| Metric | Score | Severity | Vector | Scored by |
|---|---|---|---|---|
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | [email protected] (Primary) |
| CVSS 3.1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | 6.5 | MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P | [email protected] (Primary) |
References
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/?kA23Z000000boUWSAY (Broken Link, Vendor Advisory)
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/?kA23Z000000boUWSAY (Broken Link, Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22899 (US Government Resource)
This product uses the NVD API but is not endorsed or certified by the NVD.
Read on 2026-11-02T23:41:51.476Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-22899
CVE record
- Assigner
- hackerone
- State
- PUBLISHED
- Published
- 2021-05-27T11:15:22.000Z
- Updated
- 2025-10-21T23:25:44.693Z
- Problem types
- Command Injection - Generic (CWE-77)
A command injection vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to perform remote code execution via Windows Resource Profiles Feature
References
Read on 2026-11-03T01:06:25.853Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2021/22xxx/CVE-2021-22899.json
Defensive techniques (MITRE D3FEND)
D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.
CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
- Restore: Restore Software (acts on Software)
- Harden: Domain Logic Validation (acts on Subroutine)
- Model: Asset Vulnerability Enumeration (acts on Software)
- Harden: Software Update (acts on Software)
- Harden: Credential Scrubbing (acts on Subroutine)
- Harden: Variable Initialization (acts on Subroutine)
- Isolate: Application-based Process Isolation (acts on Subroutine)
- Model: Software Inventory (acts on Software)
- Harden: Trusted Library (acts on Subroutine)
D3FEND ontology version 1.6.0.
Read on 2026-11-02T23:54:14.988Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-77.json
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Sources and licences
CISA
Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.
National Vulnerability Database (NIST)
This product uses the NVD API but is not endorsed or certified by the NVD.
NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)
CVE Program, The MITRE Corporation
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MITRE D3FEND
MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT
Cite this page
Dragons Eye Ransomware Tracker, "CVE-2021-22899: Ivanti Pulse Connect Secure Command Injection Vulnerability",
entity page, dataset version ref-9bb618b04564, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2021-22899 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T03:37:58.977.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:25:44.693Z.
Underlying source: MITRE D3FEND, ontology version 1.6.0.
Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.