CVE-2015-2431Live Meeting Vulnerability
Microsoft Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, and Lync Basic 2013 SP1 allow remote attackers to execute arbitrary code via a crafted Office Graphics Library (OGL) font, aka "Microsoft Office Graphics Component…
Published Aug 14, 2015 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2015-2431 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Live Meeting (Microsoft), Lync (Microsoft), Lync Basic (Microsoft) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 30% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
30%
Higher than 98.1% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Microsoft Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, and Lync Basic 2013 SP1 allow remote attackers to execute arbitrary code via a crafted Office Graphics Library (OGL) font, aka "Microsoft Office Graphics Component Remote Code Execution Vulnerability."
Affected Products
8 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Live MeetingMicrosoft | 2007 | n/a |
| LyncMicrosoft | 2010 | n/a |
| Lync BasicMicrosoft | 2013-sp1 | n/a |
| OfficeMicrosoft | 2010-sp2 | n/a |
Timeline
Publicly disclosed
Aug 14, 2015
Last updated
May 6, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- exploitExploitDB-37911
- otherMS15-080
- other37911
- other1033238
FAQ
Common Questions.
Microsoft Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, and Lync Basic 2013 SP1 allow remote attackers to execute arbitrary code via a crafted Office Graphics Library (OGL) font, aka "Microsoft Office Graphics Component Remote Code Execution Vulnerability."
Affected: Live Meeting (Microsoft) versions 2007; Lync (Microsoft) versions 2010; Lync Basic (Microsoft) versions 2013-sp1, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2015-2431 On Your Attack Surface?
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