seladb PcapPlusPlus 25.05 TLS Hello SSLHandshake.cpp getHandshakeVersion handshakeVersion heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k1.93

Summaryinfo

A vulnerability was found in seladb PcapPlusPlus 25.05. It has been rated as critical. This affects the function pcpp::SSLClientHelloMessage::getHandshakeVersion of the file Packet++/src/SSLHandshake.cpp of the component TLS Hello Handler. The manipulation of the argument handshakeVersion leads to heap-based overflow. This vulnerability is documented as CVE-2026-13588. The attack can be initiated remotely. Additionally, an exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in seladb PcapPlusPlus 25.05. This issue affects the function pcpp::SSLClientHelloMessage::getHandshakeVersion of the file Packet++/src/SSLHandshake.cpp of the component TLS Hello Handler. The manipulation of the argument handshakeVersion with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-13588. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept.

Applying the patch 98e671010bc7c87b95898c22ae289220ae92542b is able to eliminate this problem. The bugfix is ready for download at github.com.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 98e671010bc7c87b95898c22ae289220ae92542b

Timelineinfo

06/29/2026 Advisory disclosed
06/29/2026 +0 days VulDB entry created
06/29/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 2151
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-13588 (🔒)
GCVE (CVE): GCVE-0-2026-13588
GCVE (VulDB): GCVE-100-374591
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/29/2026 06:30
Changes: 06/29/2026 06:30 (62)
Complete: 🔍
Submitter: TYGLS
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844481: PcapPlusPlus v25.05 Heap-based Buffer Overflow (by TYGLS)

Be aware that VulDB is the high quality source for vulnerability data.

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