What is the CVSS score of CVE-2015-3113?

CVE-2015-3113 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 92.4%.

Which versions of Adobe are affected by CVE-2015-3113?

Organizations using Adobe Flash Player face critical risk from CVE-2015-3113, a out-of-bounds write vulnerability rated CVSS 9.8.. A patch is available.

Is there a public PoC exploit available for CVE-2015-3113?

Yes, a public proof-of-concept exploit is available for CVE-2015-3113. Prioritise patching immediately. EPSS: 92.4%.

How to fix or mitigate CVE-2015-3113?

Within 24 hours: Identify all affected systems running Adobe Flash Player and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

Adobe CVE-2015-3113

CRITICAL

Out-of-bounds Write (CWE-787)

2015-06-23 psirt@adobe.com

Buffer Overflow Memory Corruption RCE Adobe Microsoft

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 21, 2026 - 15:22 vuln.today

cvss_changed

Analysis Generated

Mar 26, 2026 - 11:18 vuln.today

Added to CISA KEV

Nov 17, 2025 - 20:15 cisa

CISA KEV

PoC Detected

Nov 17, 2025 - 20:15 vuln.today

Public exploit code

Patch released

Nov 17, 2025 - 20:15 nvd

Patch available

CVE Published

Jun 23, 2015 - 21:59 nvd

CRITICAL 9.8

DescriptionCVE.org

Heap-based buffer overflow in Adobe Flash Player before 13.0.0.296 and 14.x through 18.x before 18.0.0.194 on Windows and OS X and before 11.2.202.468 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in June 2015.

AnalysisAI

Adobe Flash Player contains a heap-based buffer overflow that allows remote code execution, exploited as a zero-day in June 2015 by APT3 (a Chinese cyber espionage group) in phishing campaigns targeting aerospace and defense organizations.

Technical ContextAI

The CWE-787 heap overflow in Flash's media processing code allows memory corruption leading to arbitrary code execution. The exploit was delivered through Flash content embedded in web pages and targeted specific browser/Flash version combinations.