Vulnerability in Pulsesecure Virtual Traffic Manager
CVE-2021-31922
An HTTP Request Smuggling vulnerability in Pulse Secure Virtual Traffic Manager before 21.1 could allow an attacker to smuggle an HTTP request through an HTTP/2 Header. This vulnerability is resolved in 21.1, 20.3R1, 20.2R1, 20.1R2, 19.2R4, and 18.2R3.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.010 (60.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Pulsesecure Virtual Traffic Manager — versions 18.2, 19.2, 19.3
Weakness classification (CWE)
References
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44790 (Exploit, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31922?
- CVE-2021-31922 is a high-severity vulnerability in Pulsesecure Virtual Traffic Manager, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2021-05-14.
- How severe is CVE-2021-31922?
- High severity. CVSS v3 base score is 7.5 out of 10.