CVE-2026-18313
rpcapd memory leak in libpcap before 1.10.7
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
rpcapd can allocate up to 65536 bytes per each RPCAP_MSG_UPDATEFILTER_REQ or RPCAP_MSG_STARTCAP_REQ message received from the client, but it never frees the memory, so it leaks memory even under normal use. A malicious client can cause the server to leak memory substantially faster.
| CWE | CWE-401 |
| Vendor | the tcpdump group |
| Product | libpcap |
| Published | Sep 5, 2026 |
| Last Updated | Sep 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
The Tcpdump Group / libpcap
1.9.x 1.10.x < 1.10.7