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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-19508

RDK WebUI heap-based buffer overflow 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

RDK RDK-B WebUI

  • rdkb-2025q4-kirkstoneaffected

References