CVE-2021-33269
Last modified
CVE-2021-33269 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_8004776c in /formVirtualServ. This vulnerability is triggered via a crafted POST request.. EPSS estimates a 3.83% chance of exploitation in the next 30 days.
Description
D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_8004776c in /formVirtualServ. This vulnerability is triggered via a crafted POST request.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dlink | Dir-809 Firmware | <= 1.12wwb03 |
References
- https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln01Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
- https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln01Exploit, Third Party Advisory
- https://www.dlink.com/en/security-bulletin/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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