Cyber Resilience

CVE-2017-11292

Memory Safety in Adobe Flash Player ≤ 27.0.0.130

CISA KEVActive ExploitationEUVD ExploitedMemory Safety
Published
22 October 2017
Modified
22 April 2026
KEV Added
03 March 2022
Patch / advisory
View advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.12 96th percentile
Risk Priority 90 floored blend · peak EPSS

Summary

CVE-2017-11292 is a high-severity Type Confusion (CWE-843) vulnerability in Adobe Flash Player. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 4% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Adobe Flash Player versions 27.0.0.159 and earlier contain a flawed bytecode verification procedure that permits an untrusted value to be used when calculating an array index. This flaw produces a type confusion condition, tracked as CWE-843, that can be leveraged for arbitrary code execution. The vulnerability carries a CVSS 3.1 base score of 8.8 with network attack vector, low complexity, and no required privileges.

An attacker can deliver malicious Flash content over the network that triggers the issue when rendered by the affected player. Successful exploitation grants the attacker the ability to execute arbitrary code in the context of the current user, provided the victim interacts with the content.

Adobe addressed the issue in security bulletin APSB17-32, and corresponding updates were issued through Red Hat (RHSA-2017:2899), Gentoo (GLSA-201710-22), and other distribution channels. Practitioners should apply the vendor-supplied Flash Player updates immediately and consider disabling or removing the plugin where Flash usage is no longer required.

EU & UK References

Vulnerability Data

Adobe Flash Player version 27.0.0.159 and earlier has a flawed bytecode verification procedure, which allows for an untrusted value to be used in the calculation of an array index. This can lead to type confusion, and successful exploitation could lead…

more

to arbitrary code execution.

CWE(s)
CWE-843
KEV Date Added
03 March 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2018-5002Same product: Adobe Flash Playerboth on KEV
CVE-2018-15982Same product: Adobe Flash Playerboth on KEV
CVE-2016-7855Same product: Adobe Flash Playerboth on KEV
CVE-2018-4878Same product: Adobe Flash Playerboth on KEV
CVE-2017-5070Same product: Linux Linux Kernelboth on KEV
CVE-2016-7892Same product: Adobe Flash Playerboth on KEV
CVE-2011-0611Same product: Adobe Flash Playerboth on KEV
CVE-2025-6554Same product: Linux Linux Kernelboth on KEV
CVE-2014-0497Same product: Adobe Flash Playerboth on KEV
CVE-2016-0984Same product: Adobe Flash Playerboth on KEV

Affected Assets

adobe
flash player desktop runtime
≤ 27.0.0.159
adobe
flash player
≤ 27.0.0.130 · ≤ 27.0.0.130 · ≤ 27.0.0.159
redhat
enterprise linux desktop
6.0
redhat
enterprise linux server
6.0
redhat
enterprise linux workstation
6.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.5.2
  • V3.2.3
  • V15.3.5

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent type-confusion flaws via safe typing, static analysis, and code review while the control itself addresses many additional weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect type-confusion vulnerabilities through fuzzing and static analysis.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates type-safe design and review that can catch type-confusion flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify strong typing and interface contracts that reduce type confusion.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles promote type-safe languages and memory-safety mechanisms that mitigate type confusion.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly forbid unsafe type casts and require static-analysis checks for type confusion.

References