Cyber Resilience

CVE-2017-5070

Memory Safety in Google Chrome ≤ 59.0.3071.86

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
27 October 2017
Modified
21 April 2026
KEV Added
08 June 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 0.31 98th percentile
Risk Priority 90 floored blend · peak EPSS

Summary

CVE-2017-5070 is a high-severity Type Confusion (CWE-843) vulnerability in Google Chrome. 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 2% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

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

The vulnerability is a type confusion flaw, assigned CWE-843, in the V8 JavaScript engine within Google Chrome versions prior to 59.0.3071.86 on Linux, Windows, and Mac, and 59.0.3071.92 on Android. It carries a CVSS 3.1 base score of 8.8 and permits a remote attacker to execute arbitrary code inside the renderer sandbox when a user visits a malicious page.

A remote attacker can exploit the issue by serving a crafted HTML page that triggers the type confusion during JavaScript execution. Successful exploitation yields arbitrary code execution within the Chrome sandbox, with the attack vector requiring user interaction such as navigating to the page but no prior authentication or privileges.

Chrome stable channel updates and corresponding Red Hat errata RHSA-2017:1399 address the flaw by advancing affected installations to the fixed versions listed above; additional vendor trackers including SecurityFocus BID 98861 and SecurityTracker 1038622 reference the same remediation.

EU & UK References

Vulnerability Data

Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

CWE(s)
CWE-843
KEV Date Added
08 June 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-2016-5198Same product: Apple Macosboth on KEV
CVE-2025-6554Same product: Apple Macosboth on KEV
CVE-2017-11292Same product: Linux Linux Kernelboth on KEV
CVE-2017-5030Same product: Apple Macosboth on KEV
CVE-2023-3079Same product: Apple Macosboth on KEV
CVE-2018-4878Same product: Apple Macosboth on KEV
CVE-2020-6418Same product: Google Chromeboth on KEV
CVE-2026-10910Same product: Apple Macos
CVE-2026-6301Same product: Apple Macos
CVE-2026-7337Same product: Apple Macos

Affected Assets

google
chrome
≤ 59.0.3071.86 · ≤ 59.0.3071.92
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