HOMEVULNERABILITIESCVE-2017-5556
HIGH

CVE-2017-5556

CWE-125Published: January 23, 2017· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

The ConvertToPDF plugin in Foxit Reader before 8.2 and PhantomPDF before 8.2 on Windows, when the gflags app is enabled, allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted JPEG image. The vulnerability could lead to information disclosure; an attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

NVD Source

Technical Analysis

CVE-2017-5556 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Affected Vendors & Products

foxitsoftware2 product(s)
foxit readerphantompdf
Microsoft1 product(s)
windows
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/95353
ADVISORYhttp://www.zerodayinitiative.com/advisories/ZDI-17-039/
ADVISORYhttps://www.foxitsoftware.com/support/security-bulletins.php
ADVISORYhttp://www.securityfocus.com/bid/95353
ADVISORYhttp://www.zerodayinitiative.com/advisories/ZDI-17-039/
ADVISORYhttps://www.foxitsoftware.com/support/security-bulletins.php

All References (6)

→
http://www.securityfocus.com/bid/95353Third Party Advisory · VDB Entry
→
http://www.zerodayinitiative.com/advisories/ZDI-17-039/Third Party Advisory · VDB Entry
→
https://www.foxitsoftware.com/support/security-bulletins.phpVendor Advisory
→
http://www.securityfocus.com/bid/95353Third Party Advisory · VDB Entry
→
http://www.zerodayinitiative.com/advisories/ZDI-17-039/Third Party Advisory · VDB Entry
→
https://www.foxitsoftware.com/support/security-bulletins.phpVendor Advisory

Quick Facts

CVE IDCVE-2017-5556
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected2 vendor(s)
PublishedJan 23, 2017

Related CVEs (CWE-125)

CVE-2017-14451
10.0
CVE-2009-2523
10.0
CVE-2021-41556
10.0
CVE-2026-24826
10.0
CVE-2021-21777
10.0
CVE-2013-0767
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-5556 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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