CVE-2021-22893 KEV
10.0
CRITICAL · CVSS 3.1 · EPSS 47.2% (pctl 99)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-03.
Description
Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.
Scoring
| CVSS | 10.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 47.17% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | yes — remediate by 2022-05-03 |
| Public exploit | none known |
| Published | 2021-04-23 |
| Last modified | 2026-08-12 |
CISA KEV
| Name | Ivanti Pulse Connect Secure Use-After-Free Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2022-05-03 |
| Vendor / product | Ivanti / Pulse Connect Secure |
| Ransomware use | known |
Affected (1)
| Vendor | Product |
|---|---|
| ivanti | connect secure |
References
- https://blog.pulsesecure.net/pulse-connect-secure-security-update/
- https://kb.cert.org/vuls/id/213092
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/
- https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html
- https://blog.pulsesecure.net/pulse-connect-secure-security-update/
- https://kb.cert.org/vuls/id/213092
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/
- https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html
- https://www.kb.cert.org/vuls/id/213092
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22893
→ the Explorer · watch your stack · NVD