SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-2455

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…

EXPLOIT ✓HIGH 9.3EPSS 37.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 37.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
37.43% probability · 99th percentile
Public exploits
1 in Exploit-DB · verified · first 21 August 2015
CISA KEV
Not listed
Weakness
CWE-20
Affected
microsoft/.net framework · microsoft/live meeting · microsoft/lync · microsoft/lync basic · microsoft/office · microsoft/silverlight · microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8 · microsoft/windows 8.1 · microsoft/windows rt · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows vista
Source
secure@microsoft.com
EPSS trend
0%20%40%26 October 2026: 37.43%26 October 202626 October 2026

EPSS 37.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-37919source ↗Microsoft Windows - 'win32k.sys' TTF Font Processing IUP[] Program Instruction Pool-Based Buffer Overflowwindows · Google Security Researchdos21 August 2015yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.