CVE-2026-18238
OOBR in rpcap client in libpcap before 1.10.7
- State
- Published
- Severity
- 5.0 Medium
- Published
- Sep 5, 2026
- Updated
- Sep 8, 2026
- Reserved
- Jul 29, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N | Tcpdump |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libpcapThe Tcpdump Group |
|
References
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