CVE-2020-0827Network attack vector

Remote code execution via object memory corruption

Published Mar 12, 2020 · Updated Aug 4, 2024

Memory corruption in Microsoft Edge Legacy and ChakraCore allows remote attackers to execute code through crafted web content. Microsoft has not published the affected function or the incorrect memory operation performed while ChakraCore handles crafted objects. Exploitation requires user interaction and executes code in the current user's security context.

CVSS severity7.5
High
EPSS probability13.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Microsoft Edge Legacy and ChakraCore allows remote attackers to execute code through crafted web content. Microsoft has not published the affected function or the incorrect memory operation performed while ChakraCore handles crafted objects. Exploitation requires user interaction and executes code in the current user's security context.

The record

CVE
CVE-2020-0827
Published
Mar 12, 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. Mar 12, 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

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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

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

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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

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Your stack

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