What is CVE-2023-35847?

CVE-2023-35847 is a high-severity vulnerability in Virtualsquare Picotcp, classified under Use of Uninitialized Resource. CVSS score: 7.5/10. Published 2023-06-19.

How severe is CVE-2023-35847?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Virtualsquare Picotcp

CVE-2023-35847

VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not have an MSS lower bound (e.g., it could be zero).

Published 2023-06-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Virtualsquare Picotcp

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

github.com/virtualsquare/picotcp/commit/eaf166009e44641e6570c576ba071217f100fd99 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-35847?: CVE-2023-35847 is a high-severity vulnerability in Virtualsquare Picotcp, classified under Use of Uninitialized Resource. CVSS score: 7.5/10. Published 2023-06-19.
How severe is CVE-2023-35847?: High severity. CVSS v3 base score is 7.5 out of 10.