CVE-2026-13590

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

MEDIUM
5.6
CVSS Score
Published: June 29, 2026 at 04:45 PM UTC
Updated: October 25, 2026 at 09:10 PM UTC
1 product affected across 1 vendorPcapPlusPlus

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Severity
MEDIUM5.6
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.6MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-119CWE-122

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