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CVE-2021-39433

38
FAUCET Score

CVE-2021-39433 is a high-severity Local File Inclusion (LFI) vulnerability affecting BIQS IT Biqs-drive version 1.83 and earlier, allowing an unauthenticated attacker to read arbitrary files from the server. With a CVSS score of 7.5 (High), the vulnerability is easily exploitable over the network with low attack complexity, leading to a high impact on confidentiality. While there is no evidence of active exploitation in the wild or Metasploit modules, Nuclei templates exist for detection, and the vulnerability has not garnered significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.83CPE matchmatch criteria
cpe:2.3:a:biqs:biqsdrive:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.22%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-39433 · Jan 23, 2022
This CVE's current EPSS score of 0.0822 is in the 91st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

biqs-drive.be
Broken Link
github.com / PinkDraconian/CVE-2021-39433/blob/main/README.md
ExploitThird Party Advisory