HOMEVULNERABILITIESCVE-2023-30463
HIGH

CVE-2023-30463

CWE-190Published: April 19, 2023· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2023-30463 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

altran1 product(s)
picotcp
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (4)

→
https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463/Exploit · Third Party Advisory
→
https://github.com/tass-belgium/picotcp/releasesRelease Notes
→
https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463/Exploit · Third Party Advisory
→
https://github.com/tass-belgium/picotcp/releasesRelease Notes

Quick Facts

CVE IDCVE-2023-30463
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-190
CISA KEVNo
Affected1 vendor(s)
PublishedApr 19, 2023

Related CVEs (CWE-190)

CVE-2008-2663
10.0
CVE-2010-3254
10.0
CVE-2010-1233
10.0
CVE-2013-2555
10.0
CVE-2012-5143
10.0
CVE-2012-5835
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-30463 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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