Security Resilience

CVE-2016-7200

Memory Safety in Microsoft Edge

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
10 November 2016
Modified
22 April 2026
KEV Added
28 March 2022
Patch / 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 0.83 99.7th percentile
Risk Priority 90 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2016-7200 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Edge. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 0.3% 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 memory corruption issue, specifically an out-of-bounds write (CWE-787), in the Chakra JavaScript scripting engine used by Microsoft Edge. It is tracked as CVE-2016-7200 with a CVSS score of 8.8 and was disclosed on November 10, 2016, distinct from several related scripting engine flaws in the same period.

Remote attackers can exploit the flaw by serving a crafted website to a victim; successful exploitation allows arbitrary code execution or a denial of service condition. The attack requires no special privileges but does depend on user interaction such as visiting the malicious page in Edge.

Microsoft addressed the issue in security bulletin MS16-129, which provides patches and mitigation guidance for affected Edge installations. Public references also include exploit artifacts and proof-of-concept material on sites such as Packet Storm and a dedicated GitHub repository, indicating the vulnerability received technical analysis shortly after disclosure.

EU & UK References

Vulnerability Data

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7201, CVE-2016-7202,…

more

CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

CWE(s)
KEV Date Added
28 March 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
T1006 Direct Volume Access Stealth
Adversaries may directly access a volume to bypass file access controls and file system monitoring.
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
T1012 Query Registry Discovery
Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2017-0149Same product: Microsoft Windows 10 1507both on KEV
CVE-2017-0222Same product: Microsoft Windows 10 1507both on KEV
CVE-2018-8373Same product: Microsoft Windows 10 1507both on KEV
CVE-2020-0878Same product: Microsoft Edgeboth on KEV
CVE-2017-8540Same product: Microsoft Windows 10 1507both on KEV
CVE-2018-8653Same product: Microsoft Windows 10 1507both on KEV
CVE-2021-33742Same product: Microsoft Windows 10 1507both on KEV
CVE-2022-41125Same product: Microsoft Windows 10 1507both on KEV
CVE-2021-34448Same product: Microsoft Windows 10 1507both on KEV
CVE-2020-0968Same product: Microsoft Windows 10 1507both on KEV

Affected Assets

microsoft
edge
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

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.

ID.RA-01 partial match
blocks

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

PR.PS-06 partial match
blocks

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

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.

removes
removes
removes
removes
removes

References