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CVE-2013-3870

31
FAUCET Score

CVE-2013-3870 is a double free vulnerability in Microsoft Outlook 2007 SP3 and 2010 SP1/SP2, allowing remote attackers to execute arbitrary code by sending specially crafted email messages with numerous nested S/MIME certificates. This vulnerability carries a critical CVSS score of 9.3, indicating a high-impact attack that can be executed remotely with medium complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2007:sp3:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp1:*:*:*:*:x64:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp1:*:*:*:x86:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:*:x64:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:outlook:2010:sp2:*:*:*:x86:*:*

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
18.64%
Probability of exploitation in next 30 days
EPSS Percentile
97.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.1864 is in the 84th 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

blogs.technet.com / b/srd/archive/2013/09/10/assessing-risk-for-the-september-2013-security-updates.aspx
Vendor Advisory
blogs.technet.com / b/srd/archive/2013/09/10/ms13-068-a-difficult-to-exploit-double-free-in-outlook.aspx
ExploitVendor Advisory
docs.microsoft.com / en-us/security-updates/securitybulletins/2013/ms13-068
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18857
us-cert.gov / ncas/alerts/TA13-253A
US Government Resource