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TI-2026-11511 Aliases CVE-2026-13588GHSA-9f2x-4g7j-783f

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

Priority MEDIUM 61CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A vulnerability was determined in seladb PcapPlusPlus 25.05. The impacted element is the function pcpp::SSLClientHelloMessage::getHandshakeVersion of the file Packet++/src/SSLHandshake.cpp of the component TLS Hello Handler. Executing a manipulation of the argument handshakeVersion can lead to heap-based buffer overflow. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been publicly disclosed and may be utilized. This patch is called 98e671010bc7c87b95898c22ae289220ae92542b. It is best practice to apply a patch to resolve this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
seladbPcapPlusPlus25.05—No fix listedCNA
  • PcapPlusPlus Vendorseladb Affected 25.05 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:*——seladb
  • cpe:2.3:a:seladb:pcapplusplus:*:*:*:*:*:*:*:* Versions — — ·seladb

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-13588
  2. 2026-10-03 Alias added: GHSA-9f2x-4g7j-783f

References

Exploit 1

Patch 2

Other 2

  • TI-2026-11513 seladb PcapPlusPlus Modbus Protocol ModbusLayer.h getLength heap-based overflow CVSS 4.0MEDIUM 6.3
  • TI-2026-11512 seladb PcapPlusPlus Telnet Subnegotiation Packet TelnetLayer.cpp getSubCommand heap-based overflow CVSS 4.0MEDIUM 6.3
  • TI-2026-11510 seladb PcapPlusPlus LightPcapNg light_pcapng.c parse_by_block_type heap-based overflow CVSS 4.0MEDIUM 6.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences