Adobe Flash Player up to 21.0.0.242 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Adobe Flash Player up to 21.0.0.242. This issue affects some unknown processing. The manipulation results in memory corruption. This vulnerability is identified as CVE-2016-4171. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Adobe Flash Player up to 21.0.0.242 (Multimedia Player Software). It has been classified as critical. Affected is an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in June 2016.

The weakness was released 06/16/2016 by Anton Ivanov with Kaspersky (Website). The advisory is available at helpx.adobe.com. This vulnerability is traded as CVE-2016-4171 since 04/27/2016. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Technical details are unknown but a private exploit is available.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 91671 (Adobe Flash Player for Mac <= 21.0.0.242 Multiple Vulnerabilities (APSB16-18)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370060 (Adobe Flash Player Remote Code Execution Vulnerability (APSA16-03) (APSB16-18)). This issue was added on 03/25/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 04/15/2022:

The impacted product is end-of-life and should be disconnected if still in use.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (35), Tenable (91671) and SecurityFocus (BID 91184†). Entries connected to this vulnerability are available at VDB-87980, VDB-87981, VDB-87982 and VDB-87983. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

ADP CISA Base Score: 7.8
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91671
Nessus Name: Adobe Flash Player for Mac <= 21.0.0.242 Multiple Vulnerabilities (APSB16-18)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881653
OpenVAS Name: Adobe Flash Player Security Updates( apsb16-18 )-MAC OS X
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

04/27/2016 🔍
06/14/2016 +48 days 🔍
06/16/2016 +2 days 🔍
06/16/2016 +0 days 🔍
06/16/2016 +0 days 🔍
06/17/2016 +1 days 🔍
06/17/2016 +0 days 🔍
04/23/2026 +3596 days 🔍

Sourcesinfo

Vendor: adobe.com

Advisory: RHSA-2016:1238
Researcher: Anton Ivanov
Organization: Kaspersky
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4171 (🔍)
GCVE (CVE): GCVE-0-2016-4171
GCVE (VulDB): GCVE-100-88026

OVAL: 🔍

CERT: 🔍
SecurityFocus: 91184 - Adobe Flash Player CVE-2016-4171 Remote Code Execution Vulnerability
SecurityTracker: 1036094

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/17/2016 16:49
Updated: 04/23/2026 01:01
Changes: 06/17/2016 16:49 (73), 01/27/2019 16:38 (8), 08/24/2022 11:16 (5), 04/24/2024 10:29 (23), 07/07/2024 15:40 (2), 09/09/2024 22:29 (1), 10/06/2024 02:14 (2), 11/12/2024 03:47 (3), 01/23/2025 19:01 (1), 02/04/2025 23:57 (11), 04/23/2026 01:01 (10)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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