SARA / Free Tools / CVE / CVE-2020-0878

CVE-2020-0878 — Microsoft Edge and Internet Explorer Memory Corruption Vulnerability

<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successful

CVSS
4.2 MEDIUM
EPSS
5.27% (top 10.10%)
CWE
Published
2020-09-11T17:08:26.000Z
Last modified
2025-10-21T23:35:36.572Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
CISA KEV — Actively Exploited
Added to KEV
2021-11-03
BOD 22-01 due
2022-05-03
Ransomware use
Known

01What is this vulnerability?

<p>A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with…

02Affected products

VendorProductVersions
MicrosoftChakraCore0
MicrosoftMicrosoft Edge (EdgeHTMLbased) — 1.0..0
MicrosoftInternet Explorer 91.0.0
MicrosoftInternet Explorer 111.0.0

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Known.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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