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TI-2021-05755 Aliases CVE-2021-22894GHSA-2f6h-jr2m-2vpj

Code injection in Pulse Connect Secure

Priority CRITICAL 97Exploited in the wildCWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03
EPSS 0.41284 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Pulse Connect SecureFixed version 9.1R11.4—No fix listedCNA
  • Pulse Connect Secure Vendor— Affected Fixed version 9.1R11.4 Fixed in — No fix listed CNA

CPE configurations NVD · 40

CPEVersionsRoleVendor
cpe:2.3:a:ivanti:connect_secure:9.0:-:*:*:*:*:*:*9.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r1:*:*:*:*:*:*9.0 r1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r1.0:*:*:*:*:*:*9.0 r1.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r2:*:*:*:*:*:*9.0 r2VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r2.0:*:*:*:*:*:*9.0 r2.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r2.1:*:*:*:*:*:*9.0 r2.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r3:*:*:*:*:*:*9.0 r3VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r3.0:*:*:*:*:*:*9.0 r3.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r3.1:*:*:*:*:*:*9.0 r3.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r3.2:*:*:*:*:*:*9.0 r3.2VulnerableIvanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:-:*:*:*:*:*:* Versions 9.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r1:*:*:*:*:*:* Versions 9.0 r1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r1.0:*:*:*:*:*:* Versions 9.0 r1.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r2:*:*:*:*:*:* Versions 9.0 r2 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r2.0:*:*:*:*:*:* Versions 9.0 r2.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r2.1:*:*:*:*:*:* Versions 9.0 r2.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3:*:*:*:*:*:* Versions 9.0 r3 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3.0:*:*:*:*:*:* Versions 9.0 r3.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3.1:*:*:*:*:*:* Versions 9.0 r3.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3.2:*:*:*:*:*:* Versions 9.0 r3.2 Vulnerable ·Ivanti
Show 30 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:ivanti:connect_secure:9.0:r3.3:*:*:*:*:*:*9.0 r3.3VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r3.5:*:*:*:*:*:*9.0 r3.5VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r4:*:*:*:*:*:*9.0 r4VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r4.0:*:*:*:*:*:*9.0 r4.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r4.1:*:*:*:*:*:*9.0 r4.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r5.0:*:*:*:*:*:*9.0 r5.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.0:r6.0:*:*:*:*:*:*9.0 r6.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*9.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*9.1 r1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r10.0:*:*:*:*:*:*9.1 r10.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r10.2:*:*:*:*:*:*9.1 r10.2VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r11.0:*:*:*:*:*:*9.1 r11.0VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r11.1:*:*:*:*:*:*9.1 r11.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:*9.1 r11.3VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:*9.1 r2VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:*9.1 r3VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:*9.1 r4VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:*9.1 r4.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:*9.1 r4.2VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:*9.1 r4.3VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:*9.1 r5VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:*9.1 r6VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:*9.1 r7VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:*9.1 r8VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:*9.1 r8.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:*9.1 r8.2VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r8.4:*:*:*:*:*:*9.1 r8.4VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r9:*:*:*:*:*:*9.1 r9VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r9.1:*:*:*:*:*:*9.1 r9.1VulnerableIvanti
cpe:2.3:a:ivanti:connect_secure:9.1:r9.2:*:*:*:*:*:*9.1 r9.2VulnerableIvanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3.3:*:*:*:*:*:* Versions 9.0 r3.3 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r3.5:*:*:*:*:*:* Versions 9.0 r3.5 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r4:*:*:*:*:*:* Versions 9.0 r4 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r4.0:*:*:*:*:*:* Versions 9.0 r4.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r4.1:*:*:*:*:*:* Versions 9.0 r4.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r5.0:*:*:*:*:*:* Versions 9.0 r5.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.0:r6.0:*:*:*:*:*:* Versions 9.0 r6.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:* Versions 9.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:* Versions 9.1 r1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r10.0:*:*:*:*:*:* Versions 9.1 r10.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r10.2:*:*:*:*:*:* Versions 9.1 r10.2 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r11.0:*:*:*:*:*:* Versions 9.1 r11.0 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r11.1:*:*:*:*:*:* Versions 9.1 r11.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:* Versions 9.1 r11.3 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:* Versions 9.1 r2 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:* Versions 9.1 r3 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:* Versions 9.1 r4 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:* Versions 9.1 r4.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:* Versions 9.1 r4.2 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:* Versions 9.1 r4.3 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:* Versions 9.1 r5 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:* Versions 9.1 r6 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:* Versions 9.1 r7 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:* Versions 9.1 r8 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:* Versions 9.1 r8.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:* Versions 9.1 r8.2 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r8.4:*:*:*:*:*:* Versions 9.1 r8.4 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r9:*:*:*:*:*:* Versions 9.1 r9 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r9.1:*:*:*:*:*:* Versions 9.1 r9.1 Vulnerable ·Ivanti
  • cpe:2.3:a:ivanti:connect_secure:9.1:r9.2:*:*:*:*:*:* Versions 9.1 r9.2 Vulnerable ·Ivanti

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2021-11-03 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2021-22894
  3. 2026-10-03 Alias added: GHSA-2f6h-jr2m-2vpj

References

Advisory 1

  • TI-2025-16349 Stack-based buffer overflow in Ivanti Connect Secure KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05754 Improper authentication in Pulse Connect Secure KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-08600 In Pulse Secure Pulse Connect Secure (PCS) 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and… KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-00226 Stack-based buffer overflow in Ivanti Connect Secure KEVCVSS 3.1CRITICAL 9.0
  • TI-2024-14549 Command injection in Ivanti ICS KEVCVSS 3.1CRITICAL 9.1
  • TI-2021-05760 Command injection in Pulse Connect Secure KEVCVSS 3.1HIGH 8.8
See all 132 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences