CVE-2026-13590

MEDIUM

seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow

Title source: cna
STIX 2.1

Description

A security flaw has been discovered in seladb PcapPlusPlus 25.05. This impacts the function pcpp::ModbusLayer::getLength in the library Packet++/header/ModbusLayer.h of the component Modbus Protocol Handler. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been released to the public and may be used for attacks. The patch is identified as 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454. Applying a patch is advised to resolve this issue.

References (9)

Core 9
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-374593 | seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow
https://vuldb.com/vuln/374593
Signature, Permissions Required signature permissions-required
VDB-374593 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/374593/cti
Third Party Advisory third-party-advisory
CVE-2026-13590 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-13590
Third Party Advisory third-party-advisory
Submit #844483 | PcapPlusPlus v25.05 Heap-based Buffer Overflow
https://vuldb.com/submit/844483

Scores

CVSS v3 5.6
EPSS 0.0039
EPSS Percentile 31.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-122
Status published
Products (1)
seladb/PcapPlusPlus 25.05
Published Jun 29, 2026
Tracked Since Jun 29, 2026