Security Resilience

CVE-2017-0037

Memory Safety in Microsoft Edge

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
26 February 2017
Modified
22 April 2026
KEV Added
28 March 2022
Patch / advisory
View advisory
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.80 99.6th percentile
Risk Priority 86 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-2017-0037 is a high-severity Type Confusion (CWE-843) vulnerability in Microsoft Windows 10 1507. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 0.4% 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 CVE-2017-0037 is a type confusion flaw in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function within mshtml.dll. It affects Microsoft Internet Explorer versions 10 and 11 as well as Microsoft Edge, and is catalogued under CWE-843.

Remote attackers can exploit the issue to execute arbitrary code. The attack requires a crafted CSS token sequence together with JavaScript code that manipulates a TH element; the CVSS 3.1 score of 8.1 reflects a network vector, high complexity, and no required privileges or user interaction.

Public references include Microsoft security bulletins, SecurityFocus and SecurityTracker entries, a 0patch analysis, and Google Project Zero issue 1011.

EU & UK References

Vulnerability Data

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and…

more

crafted JavaScript code that operates on a TH element.

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

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
T1011.001 Exfiltration Over Bluetooth Exfiltration
Adversaries may attempt to exfiltrate data over Bluetooth rather than the command and control channel.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2016-7201Same product: Microsoft Edgeboth on KEV
CVE-2019-0752Same product: Microsoft Internet Explorerboth on KEV
CVE-2022-41033Same product: Microsoft Windows 10 1507both on KEV
CVE-2024-38178Same product: Microsoft Windows 10 1507both on KEV
CVE-2025-30397Same product: Microsoft Windows 10 1507both on KEV
CVE-2026-21519Same product: Microsoft Windows 10 1607both on KEV
CVE-2017-0263Same product: Microsoft Windows 10 1507both on KEV
CVE-2017-0149Same product: Microsoft Internet Explorerboth on KEV
CVE-2017-0222Same product: Microsoft Internet Explorerboth on KEV
CVE-2018-8298Same vendor: Microsoftboth on KEV

Affected Assets

microsoft
edge
all versions
microsoft
internet explorer
11

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
  • 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 partial match
blocks

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.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References