CVEvulnerability

CVE-2026-18238

5.0 MEDIUM Published 2026-09-05 Modified 2026-09-08 Official page ↗

Status: Awaiting Analysis
Published: 2026-09-05
Last modified: 2026-09-08
Assigner: [email protected]
CVSS 3.1 ([email protected]): 5.0 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Weaknesses: CWE-126, CWE-1288

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.

Weakness · CWE (2)

CWE-126 Buffer Over-read weakness
CWE-1288 Improper Validation of Consistency within Input weakness

References

https://github.com/the-tcpdump-group/libpcap/commit/b9590d482986d64673712460aae1d48d11fa0473 github.com

CVE-2026-18238

Description

Related

Weakness · CWE (2)

References