CVE-2022-21826

Connect Secure vulnerability

CVSS

5.4

EPSS

45.2%

EPSS pct

99th

Exploited

No known

Pulse Secure version 9.115 and below may be susceptible to client-side http request smuggling, When the application receives a POST request, it ignores the request's Content-Length header and leaves the POST body on the TCP/TLS socket. This body ends up prefixing the next HTTP request sent down that connection, this means when someone loads website attacker may be able to make browser issue a POST to the application, enabling XSS.

Affected vendor

Ivanti

Affected product

Connect Secure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness type (CWE)

CWE-444 — HTTP Request Smuggling

Published

2022-09-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 45.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2022-21826

Confirm whether Ivanti Connect Secure is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-21826.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-21826

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-21826 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2022-21826?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2022-21826.

Start free scan

No credit card. Agentless.

Related vulnerabilities

Vidiscript vulnerability

MEDIUM

CVE-2009-1086

Ldns vulnerability