CVE-2026-13590

MEDIUM 5.6

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

CVSS Score

5.6

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-122 CWE-119
Vendor	seladb
Product	pcapplusplus
Published	Jun 29, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

seladb / PcapPlusPlus

25.05

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/374593 vuldb.com: https://vuldb.com/vuln/374593/cti vuldb.com: https://vuldb.com/cve/CVE-2026-13590 vuldb.com: https://vuldb.com/submit/844483 github.com: https://github.com/seladb/PcapPlusPlus/issues/2155 github.com: https://github.com/seladb/PcapPlusPlus/pull/2159 github.com: https://github.com/user-attachments/files/28249048/poc.zip github.com: https://github.com/seladb/PcapPlusPlus/commit/4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454 github.com: https://github.com/seladb/PcapPlusPlus/

Credits

🔍 TYGLS (VulDB User)