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CVE-2018-18447

32
FAUCET Score

CVE-2018-18447 is a critical deserialization of untrusted data vulnerability affecting dotPDN Paint.NET versions prior to 4.1.2. With a CVSS score of 9.8, this flaw allows an unauthenticated attacker to achieve complete compromise of confidentiality, integrity, and availability over a network with low attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.2CPE matchmatch criteria
cpe:2.3:a:dotpdn:paint.net:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.98%
Probability of exploitation in next 30 days
EPSS Percentile
58.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0098 is in the 44th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.getpaint.net / 2018/10/22/paint-net-4-1-2-is-now-available
Release NotesVendor Advisory
dotpdn.com
Vendor Advisory
getpaint.net
ProductVendor Advisory