CVE-2021-22908

A buffer overflow vulnerability exists in Windows File Resource Profiles in 9.X allows a remote authenticated user with privileges to browse SMB shares to execute arbitrary code as the root user. As of version 9.1R3, this permission is not enabled by default.

Published: 2021-05-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-22908 is rated High Risk (74.9/100): CVSS High severity, with high exploitation likelihood (EPSS 69.38%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +46.70% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-22908

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 22.68% 69.38% +46.70%
2 2026-05-10 30.87% 22.68% -8.20%
3 2026-03-28 — 30.87% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-22908

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2021-22908

Affected software / configurations for CVE-2021-22908

Vendor Product Version Raw CPE
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:-:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r1:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r1.0:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r2:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r2.0:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r2.1:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3.0:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3.1:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3.2:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3.3:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r3.5:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r4:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r4.0:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r4.1:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r5.0:*:*:*:*:*:*
ivanti connect_secure 9.0 cpe:2.3:a:ivanti:connect_secure:9.0:r6.0:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r10.0:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r10.2:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r11.0:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r11.1:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:*
ivanti connect_secure 9.1 cpe:2.3:a:ivanti:connect_secure:9.1:r11.4:*:*:*:*:*:*
pulsesecure pulse_connect_secure 9.0rx cpe:2.3:a:pulsesecure:pulse_connect_secure:9.0rx:*:*:*:*:*:*:*

References for CVE-2021-22908

cvelogic Threat Intelligence