CVE-2012-5256

CRITICAL

Adobe Flash Player before 10.3.183.29 and 11.x before 11.4.402.287 on Windows and Mac OS X, before 10.3.183.29 and 11.x before 11.2.202.243 on Linux, before 11.1.111.19 on Android 2.x and 3.x, and ...

Affects 8 products across 5 vendors.

CVSS 2.010.0
EPSS4.7%
Percentile92th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
CWE Weakness Definitions
CWE-119: Improper Restriction of Operations within Memory Buffer

Parent class for buffer-related vulnerabilities where operations exceed buffer boundaries.

Related Attack Patterns (CAPEC)
CAPEC-8 Buffer Overflow in an API Call
via CWE-119
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-119
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-119
CAPEC-14 Client-side Injection-induced Buffer Overflow
via CWE-119
CAPEC-24 Filter Failure through Buffer Overflow
via CWE-119
Show all 12

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2012. A critical vulnerability affects Adobe systems (CVE-2012-5256). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2012-GLOBAL-205896-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2012-5256?
This vulnerability was disclosed in 2012. A critical vulnerability affects Adobe systems (CVE-2012-5256). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2012-5256?
CVE-2012-5256 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 4.7%.
Is CVE-2012-5256 actively exploited?
No confirmed active exploitation of CVE-2012-5256 as of 2026-09-25.
How do I remediate CVE-2012-5256?
Priority: MEDIUM. Advisory: http://www.adobe.com/support/security/bulletins/apsb12-22.html PSIRT: [email protected]
What systems are affected by CVE-2012-5256?
CVE-2012-5256 affects Adobe Flash Player For Android, Adobe Air Sdk, Flash Player, Adobe Air.
Vulnerability Details
CVE IDCVE-2012-5256
BSIDBS-2012-GLOBAL-205896-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2012-10-09
Last Modified2026-06-16
ICS Relevance15%
Weakness (CWE)
Improper Restriction of Operations within Memory Buffer
SourceNVD
Official Description

Adobe Flash Player before 10.3.183.29 and 11.x before 11.4.402.287 on Windows and Mac OS X, before 10.3.183.29 and 11.x before 11.2.202.243 on Linux, before 11.1.111.19 on Android 2.x and 3.x, and before 11.1.115.20 on Android 4.x; Adobe AIR before 3.4.0.2710; and Adobe AIR SDK before 3.4.0.2710 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than other Flash Player memory corruption CVEs listed in APSB12-22.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Adobe Flash Player before 10.3.183.29 and 11.x before 11.4.402.287 on Windows and Mac OS X, before 10.3.183.29 and 11.x before 11.2.202.243 on Linux, before 11.1.111.19 on Android 2.x and 3.x, and before 11.1.115.20 on Android 4.x; Adobe AIR before 3.4.0.2710; and Adobe AIR SDK before 3.4.0.2710 allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than other Flash Player memory corruption CVEs listed in APSB CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Adobe Flash Player For Android ≤ 11.1.115.17
Adobe Adobe Air Sdk ≤ 3.4.0.2540
Adobe Flash Player 11.0.1.152 11.1.102.55 11.1.102.62 11.1.102.63 11.2.202.223 11.2.202.228
+13 more11.2.202.233 11.2.202.235 11.2.202.238 11.2.202.243 11.3.300.257 11.3.300.262 11.3.300.265 11.3.300.268 11.3.300.271 11.3.300.273 11.4.402.265 11.4.402.278 ≤ 10.3.183.25
Adobe Adobe Air ≤ 3.4.0.2540

Platforms listed by the source (the vulnerable product runs on these; they are not themselves vulnerable): Apple Mac Os X, Google Android, Linux Linux Kernel, Microsoft Windows

Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 5119 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash4aa28c9723a6e95d5ca7180752f9c5a7a78e6f25c7d93bc6c0051bda57a7f6a84abfc165ae54b004489501f5b75d836cc1bc28f7846b4a0a65484b1c0bc51777
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