What is CVE-2019-19470?

CVE-2019-19470 is a high-severity vulnerability in Tinywall, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2019-12-30.

How severe is CVE-2019-19470?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2019-19470 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Tinywall

CVE-2019-19470

Unsafe usage of .NET deserialization in Named Pipe message processing allows privilege escalation to NT AUTHORITY\SYSTEM for a local attacker. Affected product is TinyWall, all versions up to and including 2.1.12. Fixed in version 2.1.13.

Vulnerability class: Insecure Deserialization

Published 2019-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.1th percentile), scored 2026-10-08.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Tinywall

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

www.wilderssecurity.com/threads/beta-testing-tinywall.309739/page-62 (Third Party Advisory)
gist.github.com/pylorak/7df52c9325614676e07782dbe4e81582 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-19470?: CVE-2019-19470 is a high-severity vulnerability in Tinywall, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2019-12-30.
How severe is CVE-2019-19470?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2019-19470 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.