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CVE-2012-4896

29
FAUCET Score

CVE-2012-4896 is a critical heap-based buffer overflow vulnerability affecting SumatraPDF versions prior to 2.1. This flaw allows remote attackers to execute arbitrary code on a user's system by enticing them to open a specially crafted PDF document. With a CVSS score of 9.3, it poses a severe risk due to its network-based attack vector, medium complexity, and complete compromise of confidentiality, integrity, and availability. While no active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB) has been identified, and community discussion and media coverage are minimal, the high FAUCET Risk Score of 85/100 indicates its significant potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.1CPE matchmatch criteria
cpe:2.3:a:sumatrapdfreader:sumatrapdf:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.1:*:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.2:*:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.3:*:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:sumatrapdfreader:sumatrapdf:0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.19%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0519 is in the 60th percentile among its peer group of 8,914 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

code.google.com / p/sumatrapdf/source/browse/trunk/docs/releasenotes.txt
secunia.com / advisories/50656
technet.microsoft.com / security/msvr/msvr12-014