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CVE-2015-2431

51
FAUCET Score

CVE-2015-2431 is a critical remote code execution vulnerability affecting multiple Microsoft Office and Lync products, including Office 2007 SP3, Office 2010 SP2, and various Lync versions. This flaw allows attackers to execute arbitrary code by tricking users into opening a specially crafted Office Graphics Library (OGL) font file. With a CVSS score of 9.3, it poses a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA KEV and showing no active exploitation or significant community discussion, a public exploit (EDB-37911) exists, indicating the potential for future attacks.

Impacted Technologies

VendorProductVersion(s)CPE
2007CPE matchmatch criteria
cpe:2.3:a:microsoft:live_meeting:2007:*:*:*:*:*:*:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:lync:2010:*:*:*:*:*:x64:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:lync:2010:*:*:*:*:*:x86:*
2010CPE matchmatch criteria
cpe:2.3:a:microsoft:lync:2010:*:*:*:attendee:*:*:*
2013CPE matchmatch criteria
cpe:2.3:a:microsoft:lync_basic:2013:sp1:*:*:*:*: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
29.84%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-37911 · Aug 21, 2015
This CVE's current EPSS score of 0.2984 is in the 93rd 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

docs.microsoft.com / en-us/security-updates/securitybulletins/2015/ms15-080
exploit-db.com / exploits/37911
securitytracker.com / id/1033238