CVE-2021-22899

HIGHNVD 8.89.0▲Trending — 4 sources updated this weekExploited in the wild

8.8

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

CVSS v3: 8.8
EG Score: 9.0(high)
EPSS: 95.5%
KEV: ⚠ Exploited

Published

May 27, 2021

Last Modified

December 18, 2025

Advisory Details (1)

Auto-updated Jun 2, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22899

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-77Command Injection

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 09:02 UTCEG score recompute
2026-06-04 09:02 UTCGHSA enrichment
2026-06-04 04:59 UTCEG score recompute
2026-06-04 04:59 UTCGHSA enrichment
2026-06-04 00:56 UTCEG score recompute
2026-06-04 00:56 UTCGHSA enrichment
2026-06-03 20:53 UTCEG score recompute
2026-06-03 20:53 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 16:50 UTCEG score recompute
2026-06-03 16:50 UTCGHSA enrichment
2026-06-03 12:47 UTCEG score recompute
2026-06-03 12:47 UTCGHSA enrichment
2026-06-03 08:44 UTCEG score recompute
2026-06-03 08:44 UTCGHSA enrichment
2026-06-03 04:41 UTCEG score recompute
2026-06-03 04:41 UTCGHSA enrichment
2026-06-03 00:37 UTCEG score recompute
2026-06-03 00:37 UTCGHSA enrichment
2026-06-02 20:33 UTCEG score recompute

Frequently asked(6)

What is CVE-2021-22899?

CVE-2021-22899 is a high vulnerability published on May 27, 2021. 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

When was CVE-2021-22899 disclosed?

CVE-2021-22899 was first published in the National Vulnerability Database on May 27, 2021, with the most recent update on December 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-22899 actively exploited?

Yes. CISA added CVE-2021-22899 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Ivanti Pulse Connect Secure. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2021-22899?

CVE-2021-22899 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2021-22899?

CVE-2021-22899 affects Ivanti Pulse Connect Secure. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2021-22899?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22899, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-22899

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Known Exploited Vulnerabilities Catalog | CISA

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-22899?

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Advisory Details (1)

Frequently asked(6)

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