What’s Vulnerable › Vulnerabilities

CVE-2026-13587: seladb PcapPlusPlus LightPcapNg light_pcapng.c parse_by_block_type heap-based overflow

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-29 · updated 2026-10-25
• Weakness: CWE-119

Description

A vulnerability was found in seladb PcapPlusPlus 25.05. The affected element is the function parse_by_block_type of the file light_pcapng.c of the component LightPcapNg Parser. Performing a manipulation of the argument captured_packet_length results in heap-based buffer overflow. It is possible to initiate the attack remotely. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used.

Affected products

• seladb PcapPlusPlus: 25.05

References

• https://github.com/seladb/PcapPlusPlus/
• https://github.com/seladb/PcapPlusPlus/issues/2149
• https://github.com/user-attachments/files/28207967/poc.zip
• https://vuldb.com/cve/CVE-2026-13587
• https://vuldb.com/submit/844479
• https://vuldb.com/vuln/374590
• https://vuldb.com/vuln/374590/cti

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