Vulnerability Description
Heap-based buffer overflow in the multipart form-data parser in `jst_post.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote unauthenticated attacker to cause memory corruption and denial of service, and potentially execute arbitrary code, via a crafted multipart/form-data request.
References
- https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_docum
- https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/
FAQ
What is CVE-2026-19508?
CVE-2026-19508 is a documented vulnerability. Heap-based buffer overflow in the multipart form-data parser in `jst_post.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote unauthenticated attacker to cause memory corruption and den...
How severe is CVE-2026-19508?
CVSS scoring is not yet available for CVE-2026-19508. Check NVD for updates.
Is there a patch for CVE-2026-19508?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.