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CVE-2017-18185

19
FAUCET Score

CVE-2017-18185 describes a heap-based out-of-bounds read vulnerability in QPDF versions prior to 7.0.0, specifically within the Pl_Buffer::write function due to an integer overflow in the PNG filter. This vulnerability has a CVSS v3.0 score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring user interaction, and primarily leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.0.0CPE matchmatch criteria
cpe:2.3:a:qpdf_project:qpdf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 71st percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: qpdf

Vendor Advisories (1)

redhatCVE-2017-18185Low

qpdf: large heap-based out-of-bounds read in the Pl_Buffer::write function in Pl_Buffer.cc

Aug 27, 2017

References

github.com / qpdf/qpdf/commit/ec7d74a386c0b2f38990079c3b0d2a2b30be0e71
PatchThird Party Advisory
github.com / qpdf/qpdf/issues/150
Issue TrackingThird Party Advisory
usn.ubuntu.com / 3638-1