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TI-2020-14889 Aliases CVE-2020-24340GHSA-g85v-4g67-6899

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0.

Priority LOW 38CWE-125Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The code that processes DNS responses in pico_mdns_handle_data_as_answers_generic() in pico_mdns.c does not check whether the number of answers/responses specified in a DNS packet header corresponds to the response data available in the packet, leading to an out-of-bounds read, invalid pointer dereference, and Denial-of-Service.

Why it matters now

EPSS 0.02853 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*up to 1.7.0VulnerableAltran
cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:*up to 1.7.0VulnerableAltran
  • cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:* Versions up to 1.7.0 Vulnerable ·Altran
  • cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:* Versions up to 1.7.0 Vulnerable ·Altran

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-24340
  2. 2026-10-03 Alias added: GHSA-g85v-4g67-6899

References

Advisory 2

  • TI-2020-14887 An issue was discovered in picoTCP through 1.7.0. CVSS 3.1CRITICAL 9.8
  • TI-2021-12789 Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in… CVSS 3.1CRITICAL 9.8
  • TI-2020-13207 An issue was discovered in picoTCP 1.7.0. CVSS 3.1CRITICAL 9.1
  • TI-2020-14890 An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. CVSS 3.1CRITICAL 9.1
  • TI-2017-14528 picoTCP (versions 1.7.0 - 1.5.0) is vulnerable to stack buffer overflow resulting in code… CVSS 3.0CRITICAL 9.8
  • TI-2023-14300 Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service)… CVSS 3.1HIGH 7.5
See all 12 →

Sources

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