What is CVE-2018-18447?

CVE-2018-18447 is a critical-severity vulnerability in Dotpdn Paint.net, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-10-12.

How severe is CVE-2018-18447?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in Dotpdn Paint.net

CVE-2018-18447

dotPDN Paint.NET before 4.1.2 allows Deserialization of Untrusted Data (issue 2 of 2).

Vulnerability class: Insecure Deserialization

Published 2022-10-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Dotpdn Paint.net

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

www.dotpdn.com (Vendor Advisory)
www.getpaint.net (Product, Vendor Advisory)
blog.getpaint.net/2018/10/22/paint-net-4-1-2-is-now-available/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2018-18447?: CVE-2018-18447 is a critical-severity vulnerability in Dotpdn Paint.net, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-10-12.
How severe is CVE-2018-18447?: Critical severity. CVSS v3 base score is 9.8 out of 10.