CVE-2015-2455Live Meeting Vulnerability
Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, Windows 10, Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1,…
Published Aug 14, 2015 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2015-2455 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Live Meeting (Microsoft), Lync (Microsoft), Lync Basic (Microsoft) and 12 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 37% probability of exploitation in the next 30 days.
- Fixed versions are available, including Silverlight 5.1.40416.0.
- 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)
37%
Higher than 98.5% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
46/100
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
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, Windows 10, Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, Lync Basic 2013 SP1, Silverlight before 5.1.40728, and .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, and 4.6 allow remote attackers to execute arbitrary code via a crafted TrueType font, aka "TrueType Font Parsing Vulnerability," a different vulnerability than CVE-2015-2456.
Affected Products
28 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Live MeetingMicrosoft | 2007 | n/a |
| LyncMicrosoft | 2010, 2013-sp1 | n/a |
| Lync BasicMicrosoft | 2013-sp1 | n/a |
| .net FrameworkMicrosoft | 3.0-sp2, 3.5, 3.5.1, 4.0, 4.5, 4.5.1, 4.5.2, 4.6 | n/a |
| OfficeMicrosoft | 2007-sp3, 2010-sp2 | n/a |
Patched Releases
Silverlight
5.1.40416.0
Timeline
Publicly disclosed
Aug 14, 2015
Last updated
May 6, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- advisory76216
- advisory1033238
- patchMS15-080
- exploitExploitDB-37919
- exploit37919
FAQ
Common Questions.
Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, Windows 10, Office 2007 SP3 and 2010 SP2, Live Meeting 2007 Console, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, Lync Basic 2013 SP1, Silverlight before 5.…
Affected: Live Meeting (Microsoft) versions 2007; Lync (Microsoft) versions 2010, 2013-sp1; 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.
Fixed versions are available, including Silverlight 5.1.40416.0.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2015-2455 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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