CRITICAL
CVE-2009-0191
CWE-94Published: March 10, 2009· Updated: Jun 16, 2026
9.3
CVSS v3.1
Official Description
Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 3.0.2009.1301, does not properly handle a JBIG2 symbol dictionary segment with zero new symbols, which allows remote attackers to execute arbitrary code via a crafted PDF file that triggers a dereference of an uninitialized memory location.
Technical Analysis
CVE-2009-0191 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:M/Au:N/C:C/I:C/A:C
Affected Vendors & Products
foxitsoftware1 product(s)
foxit reader
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
All References (16)
→
http://secunia.com/advisories/34036Vendor Advisory
→
http://secunia.com/secunia_research/2009-11/Vendor Advisory
→
http://www.foxitsoftware.com/pdf/reader/security.htm#ProcessingPatch · Vendor Advisory
→
http://www.vupen.com/english/advisories/2009/0634Patch · Vendor Advisory
→
http://secunia.com/advisories/34036Vendor Advisory
→
http://secunia.com/secunia_research/2009-11/Vendor Advisory
→
http://www.foxitsoftware.com/pdf/reader/security.htm#ProcessingPatch · Vendor Advisory
→
http://www.vupen.com/english/advisories/2009/0634Patch · Vendor Advisory
Quick Facts
CVE IDCVE-2009-0191
CVSS Score9.3 / 10
SeverityCRITICAL
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedMar 10, 2009
Related CVEs (CWE-94)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-0191 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.