CVE-2026-18238
Medium · 5.0CVSS
5.0
EPSS
0.2%
Published
Sep 5, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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