CVEvulnerability
CVE-2021-27248
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-04-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 8.8 HIGH — CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 8.3 HIGH — AV:A/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-121
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 configurations
• dlink dap-2020 firmware 1.01
Related
Weakness · CWE (1)
- CWE-121 Stack-based Buffer Overflow weakness
References
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201 Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-203/ Third Party Advisory, VDB Entry
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201 Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-203/ Third Party Advisory, VDB Entry