CVE-2021-27248

HIGH
8.8
CVSS Score
Published: April 14, 2021 at 03:45 PM UTC
Updated: June 17, 2026 at 03:44 AM UTC
2 products affected across 1 vendorDap 2020 FirmwareDap-2020

Using DAP-2020 by D-Link?

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Severity
HIGH8.8
Exploit prediction
EPSS 3%

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10932.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

dlink-dap-2020 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-121

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