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CVE-2021-3922

24
FAUCET Score

CVE-2021-3922 describes a race condition in Lenovo System Interface Foundation's IMController component, affecting versions prior to 1.1.20.3. This flaw allows a local attacker to interact with the IMController child process' named pipe. With a CVSS score of 7.0 (High), the vulnerability requires local access and high attack complexity, but could lead to significant confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei, though it has received limited community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.20.3CPE matchmatch criteria
cpe:2.3:a:lenovo:system_interface_foundation:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.88%
Probability of exploitation in next 30 days
EPSS Percentile
77.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0188 is in the 95th percentile among its peer group of 1,516 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.lenovo.com / us/en/product_security/LEN-75210
PatchVendor Advisory