CVE-2026-18238
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.
- Published Sep 5, 2026
- CVSS 5.0 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available