seladb PcapPlusPlus LightPcapNg light_pcapng.c parse_by_block_type heap-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13587
- 2026-10-03 Alias added: GHSA-94c3-8cq4-gwwg
References
More seladb vulnerabilities
- 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-2026-11511 seladb PcapPlusPlus TLS Hello SSLHandshake.cpp getHandshakeVersion heap-based overflow CVSS 4.0MEDIUM 6.3
Sources
- CVE-2026-13587 · CVE Program
- CVE-2026-13587 · NVD
- FIRST EPSS
- GHSA-94c3-8cq4-gwwg · GitHub Advisory Database · CC BY 4.0
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