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TI-2020-13210 Aliases CVE-2020-17444GHSA-6927-m748-j36j

An issue was discovered in picoTCP 1.7.0.

Priority LOW 38CWE-190Published · 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-190 and the CVSS impact.

Summary

An issue was discovered in picoTCP 1.7.0. The routine for processing the next header field (and deducing whether the IPv6 extension headers are valid) doesn't check whether the header extension length field would overflow. Therefore, if it wraps around to zero, iterating through the extension headers will not increment the current data pointer. This leads to an infinite loop and Denial-of-Service in pico_ipv6_check_headers_sequence() in pico_ipv6.c.

Why it matters now

EPSS 0.02832 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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*up to 1.7.0VulnerableAltran
  • cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:* 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-2020-17444
  2. 2026-10-03 Alias added: GHSA-6927-m748-j36j

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