CVE-2020-0710Network attack vector

Remote code execution via crafted JavaScript content

Published Feb 11, 2020 · Updated Aug 4, 2024

Memory corruption in Microsoft ChakraCore and Edge Legacy allows remote attackers to execute code through crafted JavaScript content. Microsoft identifies improper object handling in the ChakraCore scripting engine but does not disclose the erroneous memory operation specific to this CVE. Exploitation requires a user to open attacker-controlled content, after which code runs in the affected application's security context.

CVSS severity7.5
High
EPSS probability10.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Memory corruption in Microsoft ChakraCore and Edge Legacy allows remote attackers to execute code through crafted JavaScript content. Microsoft identifies improper object handling in the ChakraCore scripting engine but does not disclose the erroneous memory operation specific to this CVE. Exploitation requires a user to open attacker-controlled content, after which code runs in the affected application's security context.

The record

CVE
CVE-2020-0710
Published
Feb 11, 2020
Updated
Aug 4, 2024
Vendor
Microsoft
Product
Microsoft Edge Legacy
Classifications
CWE-787, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Edge Legacyversion=unspecified
Microsoft · ChakraCoreversion=unspecified

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.6NIST NVDAV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo