High severity · published May 14, 2021
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
7.5
CVSS
1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VT
Virtual Traffic Manager · Pulsesecure
through 18.1; 18.3 through 19.1; 18.2; 18.2; 19.2; 19.2; +5 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31922
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31922
Exploit
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44790
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