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CVE-2018-18581

27
FAUCET Score

CVE-2018-18581 is a heap-based buffer over-read vulnerability, specifically in the internalPrintf function within the miniz/lupng.c component of LuPng through 2017-03-10. This flaw affects the lupng_project lupng product. It carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. Currently, there is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2017-03-10CPE matchmatch criteria
cpe:2.3:a:lupng_project:lupng:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.29%
Probability of exploitation in next 30 days
EPSS Percentile
67.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0129 is in the 66th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / grandnew/software-vulnerabilities/tree/master/LuPng
ExploitThird Party Advisory
github.com / jansol/LuPng/issues/7
ExploitThird Party Advisory