CVE-2015-2455
Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
37% chance of exploitation activity in the next 30 days, which ranks it in the 98th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
A public exploit existed 61 days before the patch.
- OpenVAS check added
- EPSS band changehigh → moderate
- Patch availablerecord updated
- Public exploit / PoCsource: exploit-db
- Publishedweakness classified, att&ck mapped
Affected products
- .net frameworkOSS Libraries / generic-library
- live meetingCommunications / video-conferencing
- lyncCommunications / messaging-chat
- lync basicOperating Systems / windows
- officeConsumer Software / productivity
- silverlightOperating Systems / windows
- windows 10Operating Systems / windows
- windows 7Operating Systems / windows
And 8 more affected products. See all after sign-in
Technical detail
CVSS 2.0 vector
Open in the CVSS calculatorAV:N/AC:M/Au:N/C:C/I:C/A:C
Scored 9.3 by NVD.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity MediumSome conditions must be met
- Authentication NoneNo authentication required
Impact if exploited
- Confidentiality CompleteAll information is disclosed
- Integrity CompleteAll data can be modified
- Availability CompleteTotal shutdown of the affected resource
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationlow confidence
Sources
References in the record
- docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-080
- exploit-db.com/exploits/37919/
- securitytracker.com/id/1033238
And 1 more reference. See all after sign-in
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