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CVE-2020-15892

30
FAUCET Score

CVE-2020-15892 describes a critical stack-based buffer overflow vulnerability in D-Link DAP-1520 devices (firmware versions prior to 1.10b04Beta02). This flaw arises from insufficient server-side validation of input fields (log_pass, html_response_page, log_user) during web interface login, allowing an attacker to bypass client-side length restrictions. With a CVSS score of 9.8 (CRITICAL), this vulnerability is remotely exploitable with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.10b04CPE matchmatch criteria
cpe:2.3:o:dlink:dap-1520_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.64%
Probability of exploitation in next 30 days
EPSS Percentile
73.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0164 is in the 61st percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

research.loginsoft.com / bugs/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520
ExploitThird Party Advisory
supportannouncement.us.dlink.com / announcement/publication.aspx
PatchVendor Advisory