Realtek: security record
CISA's Known Exploited Vulnerabilities catalog lists 3 flaws in Realtek routers and network gear that attackers have exploited in the wild, added between 3 November 2021 and 18 September 2023.
What this list means
CISA adds a flaw to its Known Exploited Vulnerabilities catalog when there is reliable evidence that attackers have used it in the wild and clear steps exist to fix or reduce it. A listed flaw usually has a patch or workaround from the maker. Some older devices are no longer supported and will not be fixed. If you own an affected model, check the maker's notice, update the firmware or replace the device if it is out of support.
Realtek SDK Improper Input Validation Vulnerability
Realtek SDK contains an improper input validation vulnerability in the miniigd SOAP service that allows remote attackers to execute malicious code via a crafted NewInternalClient request.
Realtek Jungle SDK Remote Code Execution Vulnerability
RealTek Jungle SDK contains multiple memory corruption vulnerabilities which can allow an attacker to perform remote code execution.
Realtek AP-Router SDK Buffer Overflow Vulnerability
Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).
A listing shows that a flaw was exploited, not how a maker compares overall. Makers with many devices in use tend to appear more often. Check the maker's own notice for the models and firmware versions affected.
Sources
- Cybersecurity and Infrastructure Security Agency (CISA), Known Exploited Vulnerabilities Catalog, version 2026.10.28, released 28 October 2026
- National Institute of Standards and Technology, National Vulnerability Database
Checked 29 October 2026.