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CVE-2021-27250

58
FAUCET Score

CVE-2021-27250 is a network-adjacent information disclosure vulnerability affecting D-Link DAP-2020 v1.01rc001 Wi-Fi access points. It allows unauthenticated attackers to disclose sensitive information, including stored credentials, due to improper validation of a user-supplied path during CGI script processing. Rated 6.5 MEDIUM on CVSS, this flaw is easily exploitable with low attack complexity and no user interaction required. While its FAUCET Risk Score is high at 98/100 and EPSS indicates a higher-than-average exploit probability, there is currently no public exploit code (Metasploit, Nuclei, ExploitDB) and no evidence of active exploitation or community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.01CPE matchmatch criteria
cpe:2.3:o:dlink:dap-2020_firmware:1.01:rc001:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
66.05%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.6604 is in the 100th percentile among its peer group of 1,802 CVEs.

Social Chatter

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

supportannouncement.us.dlink.com / announcement/publication.aspx
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-21-205
Third Party AdvisoryVDB Entry