What is the CVSS score of CVE-2011-0609?

CVE-2011-0609 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 92.0%.

Is there a public PoC exploit available for CVE-2011-0609?

Yes, a public proof-of-concept exploit is available for CVE-2011-0609. Prioritise patching immediately. EPSS: 92.0%.

How to fix or mitigate CVE-2011-0609?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Flash Player CVE-2011-0609

HIGH

2011-03-15 psirt@adobe.com

RCE Denial Of Service Google Microsoft Adobe Acrobat Acrobat Reader Suse Linux Enterprise Flash Player Opensuse Air

7.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Impact	High risk. Flash Player's ubiquity in 2011 meant virtually every desktop was vulnerable. The dual attack surface (web browsers and PDF readers) gave attackers multiple delivery options.
Exploit ScenarioDerived	Attackers embedded malicious Flash content in an Excel spreadsheet distributed via spear-phishing. When opened, the embedded SWF triggered the vulnerability through the Authplay component, executing shellcode to install a backdoor.

Act Now Prioritize within 24-48h. Why: HIGH severity + EPSS > 10%.

Exploited in the wild (CISA KEV) No patch listed yet 92.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 26, 2026

Adobe Flash Player 10.2 and earlier across all platforms contain an unspecified vulnerability allowing remote code execution, exploited in the wild via Flash content embedded in Microsoft Office documents and web pages.

Earlier versions of this analysis (1)

v1 Mar 26, 2026 - 11:17 CVSS 7.8

An unspecified vulnerability in Adobe Flash Player enables remote code execution across Windows, Mac OS X, Linux, Solaris, and Android platforms, as well as through Adobe AIR and the Authplay.dll component in Adobe Reader/Acrobat.

RemediationAI

Flash Player has reached end of life. Remove all Flash Player installations. Ensure browsers block Flash content. Use PDF readers that don't support Flash embedding.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability in Flash Player's SWF processing engine allows attackers to achieve arbitrary code execution. The Authplay.dll/AuthPlayLib.bundle component extends the attack surface to PDF documents, since Adobe Reader renders embedded Flash content.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Oct 22, 2025 - 01:15 cisa

CISA KEV

PoC Detected

Oct 22, 2025 - 01:15 vuln.today

Public exploit code

CVE Published

Mar 15, 2011 - 17:55 nvd

HIGH 7.8

DescriptionCVE.org

Unspecified vulnerability in Adobe Flash Player 10.2.154.13 and earlier on Windows, Mac OS X, Linux, and Solaris; 10.1.106.16 and earlier on Android; Adobe AIR 2.5.1 and earlier; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader and Acrobat 9.x through 9.4.2 and 10.x through 10.0.1 on Windows and Mac OS X, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content, as demonstrated by a .swf file embedded in an Excel spreadsheet, and as exploited in the wild in March 2011.

Executive ViewAI

Why It Matters

CVE-2011-0609 presents notable security risk rated CVSS 7.8. Exploitation could compromise the security of affected deployments. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. Immediate patching is required per CISA KEV mandate.

Business Impact: Severe

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

Threat Score

9.3/10

Composite threat intelligence

EPSS Score

92.0%

Top 0% exploitable

Threat Intel

1 sources

Exploit

POC

Public exploit code exists

Data Quality

8 sources

Confidence: High

NVD

CVE.org

CISA KEV

EPSS POC (1) THREAT

Exploit-DB

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV Yes

Public POC Yes

EPSS 92.0%

Patch available No

Active threat Yes

Deciding rule

HIGH severity + EPSS > 10%

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Small

Automatable· derived

Human Impact

Very High

Priority Score

226

Low Medium High Critical

KEV: +50

EPSS: +92

CVSS: +39

PoC: +20

Weaponized: +15

Threat intel: +10

Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat:10.0:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat:10.0.1:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat_reader:10.0:*:*:*:*:*:*:*

cpe:2.3:a:adobe:acrobat_reader:10.0.1:*:*:*:*:*:*:*

cpe:2.3:a:adobe:air:*:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*

cpe:2.3:o:suse:linux_enterprise:10.0:sp3:*:*:*:*:*:*

cpe:2.3:o:suse:linux_enterprise:11.0:sp1:*:*:*:*:*:*

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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9.8 Apr 14

Adobe Flash Player before 13.0.0.281 and 14.x through 17.x before 17.0.0.169 on Windows and OS X and before 11.2.202.457

CVE-2012-1535 HIGH Act Now POC

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Unspecified vulnerability in Adobe Flash Player before 11.3.300.271 on Windows and Mac OS X and before 11.2.202.238 on L

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Same technique RCE

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CVE-2023-3519 CRITICAL POC

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Threat IntelligenceMISP

Threat Actors

APT12

ATT&CK Techniques (observed)

T1203 - Exploitation for Client Execution

Sources: MITRE ATT&CK, Metasploit/Nuclei

References

Advisories & patches

ADVISORY http://www.adobe.com/support/security/advisories/apsa11-01.html ADVISORY https://vuldb.com/vuln/4320 ADVISORY https://vuldb.com/vuln/4321 REF http://blogs.adobe.com/asset/2011/03/background-on-apsa11-01-patch-schedule.html REF http://googlechromereleases.blogspot.com/2011/03/stable-and-beta-channel-updates_15.html REF http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html REF http://secunia.com/advisories/43751 REF http://secunia.com/advisories/43757 REF http://secunia.com/advisories/43772 REF http://secunia.com/advisories/43856 REF http://securityreason.com/securityalert/8152 REF http://www.adobe.com/support/security/bulletins/apsb11-06.html REF http://www.kb.cert.org/vuls/id/192052 REF http://www.redhat.com/support/errata/RHSA-2011-0372.html REF http://www.securityfocus.com/bid/46860 REF http://www.securitytracker.com/id?1025210 REF http://www.securitytracker.com/id?1025211 REF http://www.securitytracker.com/id?1025238 REF http://www.vupen.com/english/advisories/2011/0655 REF http://www.vupen.com/english/advisories/2011/0656 REF http://www.vupen.com/english/advisories/2011/0688 REF http://www.vupen.com/english/advisories/2011/0732 REF https://exchange.xforce.ibmcloud.com/vulnerabilities/66078 REF https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14147 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-0609

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