CVE-2015-2426

Exp

Buffer underflow in atmfd.dll in the Windows Adobe Type Manager Library in 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, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted OpenType font, aka "OpenType Font Driver Vulnerability."

Published: 2015-07-20 Last update: 2026-04-22 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2015-2426

KEV EPSS CVSS CWE Exploit-DB Affected

Conclusion & alert: CVE-2015-2426 is rated Critical Active Threat (95.2/100): CVSS High severity, with high exploitation likelihood (EPSS 91.75%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2022-03-28) affecting Microsoft / Windows. a weakness (CWE-119) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2015-2426

Name: Microsoft Windows Adobe Type Manager Library Remote Code Execution Vulnerability · CISA KEV detail

Exploit added: 2022-03-28

Action due: 2022-04-18

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2015-2426

EDB-ID	Source	Kind	Published	Link
38222	exploit_db	edb	2015-09-17	Exploit-DB ↗
—	nvd_ref	exploit_tag		Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-2426

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-01-13	91.61%	91.75%	+0.14%
2	2025-08-06	91.72%	91.61%	-0.11%
3	2025-07-03	—	91.72%	—

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-2426

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0
9.3	2.0	HIGH	`AV:N/AC:M/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	8.6	10.0	[email protected]

Weakness enumeration for CVE-2015-2426

CWE-119 MITRE ↗ CWE-124 MITRE ↗

Affected software / configurations for CVE-2015-2426

Vendor	Product	Version	Raw CPE
microsoft	windows_10	—	cpe:2.3:o:microsoft:windows_10:-:::::::*
microsoft	windows_7	—	cpe:2.3:o:microsoft:windows_7:-:sp1::::::
microsoft	windows_8	—	cpe:2.3:o:microsoft:windows_8:-:::::::*
microsoft	windows_8.1	—	cpe:2.3:o:microsoft:windows_8.1:-:::::::*
microsoft	windows_rt	—	cpe:2.3:o:microsoft:windows_rt:-:::::::*
microsoft	windows_rt_8.1	—	cpe:2.3:o:microsoft:windows_rt_8.1:-:::::::*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:-:sp2::::::
microsoft	windows_server_2008	r2	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::itanium:*
microsoft	windows_server_2008	r2	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
microsoft	windows_server_2012	—	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
microsoft	windows_server_2012	r2	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
microsoft	windows_vista	—	cpe:2.3:o:microsoft:windows_vista:-:sp2::::::

References for CVE-2015-2426

URL	Tags
http://blog.trendmicro.com/trendlabs-security-intelligence/a-look-at-the-open-type-font-manager-vulnerability-from-the-hacking-team-leak/	Exploit Third Party Advisory
http://www.kb.cert.org/vuls/id/103336	Third Party Advisory US Government Resource
http://www.securityfocus.com/bid/75951	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1032991	Third Party Advisory VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-078	Patch Vendor Advisory
https://www.exploit-db.com/exploits/38222/	Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-2426	US Government Resource

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