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CVE-2013-1346

28
FAUCET Score

CVE-2013-1346 describes a critical memory corruption vulnerability in the Microsoft Malware Protection Engine (mpengine.dll) on x64 platforms, affecting versions prior to 1.1.9506.0. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service through a specially crafted file. With a CVSS score of 9.3, it is considered highly severe due to its network-based attack vector, medium complexity, and complete compromise of confidentiality, integrity, and availability. Despite its high severity and FAUCET Risk Score of 91/100, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.9402.0CPE matchmatch criteria
cpe:2.3:a:microsoft:malware_protection_engine:*:-:*:*:*:*:x64:*

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
11.64%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.1164 is in the 77th percentile among its peer group of 8,920 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

technet.microsoft.com / security/advisory/2846338
PatchVendor Advisory