THREAT OPS › Threat News › [NVD] CVE-2026-18238 (MEDIUM 5.0) — The rpcap client code that processes a RPCAP_MSG_PACKET message received from the server incorrectly validates its headers. A malicious server can send a crafted message and cause the client to treat up to 20 bytes of the client process memory beyond the end of the buffer as if
[NVD] CVE-2026-18238 (MEDIUM 5.0) — The rpcap client code that processes a RPCAP_MSG_PACKET message received from the server incorrectly validates its headers. A malicious server can send a crafted message and cause the client to treat up to 20 bytes of the client process memory beyond the end of the buffer as if
CVE-2026-18238 CVSS: 5.0 MEDIUM Published: 2026-09-05T19:16:55.477
The rpcap client code that processes a RPCAP_MSG_PACKET message received from the server incorrectly validates its headers. A malicious server can send a crafted message and cause the client to treat up to 20 bytes of the client process memory beyond the end of the buffer as if it was a part of the captured packet.
Indicators of compromise
- CVE-2026-18238cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-18238