CVE-2026-13589

Medium

Description

A vulnerability was identified in seladb PcapPlusPlus 25.05. This affects the function pcpp::TelnetLayer::getSubCommand of the file Packet++/src/TelnetLayer.cpp of the component Telnet Subnegotiation Packet Handler. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The exploit is publicly available and might be used. The identifier of the patch is 98e671010bc7c87b95898c22ae289220ae92542b. It is recommended to apply a patch to fix this issue.

SeverityMedium
CVSS5.6
Exploit probability—
ProductSeladb Pcapplusplus
PublishedJun 29, 2026
First seenJun 29, 2026

How to fix

Affected products

ProductAffected versionsFixed in
seladb pcapplusplus25.05—

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CVE-2026-13589 · Seladb Pcapplusplus · Dark Radar