TI-2023-14300 Aliases CVE-2023-30463 GHSA-46fh-f8vx-p359

Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service)…

MEDIUM 40CWE-190Published 2023-04-19 · Updated 2025-02-05

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 · CISA ADP. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00874 59th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:altran:picotcp::::::::	up to 1.7.0	Vulnerable	Altran

cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:* Versions up to 1.7.0 Vulnerable ·Altran

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-30463
2026-10-03 Alias added: GHSA-46fh-f8vx-p359

References

Exploit 1

https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463/

Other 1

https://github.com/tass-belgium/picotcp/releases

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-2020-14889 An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. 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