CVE-2026-13590: Heap-based Buffer Overflow in seladb PcapPlusPlus
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.
AI Analysis
Technical Summary
seladb PcapPlusPlus 25.05 contains a heap-based buffer overflow vulnerability in the pcpp::ModbusLayer::getLength function of the Modbus Protocol Handler (Packet++/header/ModbusLayer.h). The vulnerability arises from improper handling of the length argument, enabling remote attackers to trigger memory corruption. The attack complexity is high, and exploitation does not require privileges or user interaction. A patch has been identified (commit 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454) to fix this issue. The vulnerability is assigned CVE-2026-13590 with a CVSS 4.0 base score of 6.3 (medium severity).
Potential Impact
Successful exploitation can lead to heap-based buffer overflow, potentially causing memory corruption or application crashes. The vulnerability can be exploited remotely without authentication or user interaction. The complexity to exploit is high, and the impact on confidentiality, integrity, and availability is low to limited as per the CVSS vector.
Mitigation Recommendations
A patch identified by commit 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454 is available and should be applied to affected installations of PcapPlusPlus 25.05 to remediate this vulnerability. No vendor advisory content is provided to indicate alternative mitigations or if the patch is integrated in a later release. Therefore, applying the patch is the recommended remediation step.
CVE-2026-13590: Heap-based Buffer Overflow in seladb PcapPlusPlus
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.
CVSS v4.0
Score 6.3medium
Affected software
pkg:github/seladb/PcapPlusPluscpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
seladb PcapPlusPlus 25.05 contains a heap-based buffer overflow vulnerability in the pcpp::ModbusLayer::getLength function of the Modbus Protocol Handler (Packet++/header/ModbusLayer.h). The vulnerability arises from improper handling of the length argument, enabling remote attackers to trigger memory corruption. The attack complexity is high, and exploitation does not require privileges or user interaction. A patch has been identified (commit 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454) to fix this issue. The vulnerability is assigned CVE-2026-13590 with a CVSS 4.0 base score of 6.3 (medium severity).
Potential Impact
Successful exploitation can lead to heap-based buffer overflow, potentially causing memory corruption or application crashes. The vulnerability can be exploited remotely without authentication or user interaction. The complexity to exploit is high, and the impact on confidentiality, integrity, and availability is low to limited as per the CVSS vector.
Mitigation Recommendations
A patch identified by commit 4c90c3e3418a2b09dc82b7ca5775e9c1e22fe454 is available and should be applied to affected installations of PcapPlusPlus 25.05 to remediate this vulnerability. No vendor advisory content is provided to indicate alternative mitigations or if the patch is integrated in a later release. Therefore, applying the patch is the recommended remediation step.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-29T04:25:34.242Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42a9a827e9c79719324a0e
Added to database: 06/29/2026, 17:21:44 UTC
Last enriched: 07/06/2026, 22:24:19 UTC
Last updated: 08/13/2026, 12:41:08 UTC
Views: 89
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