CVE-2026-19508
RDK WebUI heap-based buffer overflow vulnerability
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | rdk |
| Product | rdk-b webui |
| Published | Aug 19, 2026 |
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Affected Versions
RDK / RDK-B WebUI
rdkb-2025q4-kirkstone