Vulnerability Description
DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://dd-wrt.com/
- https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/
- https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/
- https://www.exploit-db.com/exploits/49730
- https://www.vulncheck.com/advisories/dd-wrt-upnp-buffer-overflow
FAQ
What is CVE-2021-47854?
CVE-2021-47854 is a vulnerability with a CVSS score of 9.8 (CRITICAL). DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEA...
How severe is CVE-2021-47854?
CVE-2021-47854 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-47854?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.