Medium 5.6Published Jun 29, 2026

CVE-2026-13590seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow

Updated under an hour ago (Oct 28, 2026, 1:23 PM ET)

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Every CVE for seladb PcapPlusPlus

Exploited in the last 30 days

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.

CVSS: 5.6 MEDIUM (v3.1, CNA)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
Weakness (CWE): CWE-122, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jun 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

seladb PcapPlusPlus seladb:pcapplusplus	25.05	CNA record

References

References

https://vuldb.com/vuln/374593	vdb-entry, technical-description
https://vuldb.com/vuln/374593/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-13590	third-party-advisory
https://vuldb.com/submit/844483	third-party-advisory
https://github.com/seladb/PcapPlusPlus/issues/2155	issue-tracking
https://github.com/seladb/PcapPlusPlus/pull/2159	issue-tracking, patch
https://github.com/user-attachments/files/28249048/poc.zip	exploit
https://github.com/seladb/PcapPlusPlus/commit/4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454	patch
https://github.com/seladb/PcapPlusPlus/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.