CVE-2021-264118.8HighCWE-416

CVE-2021-26411: Internet Explorer Memory Corruption Vulnerability

Microsoft · Internet Explorer 11

Vendor fix available · Affected: Microsoft Internet Explorer 11 · Exploitation: in CISA KEV since 3 Nov 2021

Known ransomware use

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

ExploitationIn CISA KEV

In CISA KEVCISA KEV catalogue3 Nov 2021
Exploited (reported): not seen
Scanning observed: not seen
Proof of concept public: not seen
Not established: not seen

81.7%probability of exploitation in the next 30 days

99th percentile

050100

Higher than 99% of scored CVEs

8.8HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

Internet Explorer Memory Corruption Vulnerability

Affected products3

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Microsoft · Internet Explorer 11from 1.0.0 before 10.0.17134.2087
Microsoft · Internet Explorer 9from 1.0.0 before 6.0.6003.21070
Microsoft · Microsoft Edge (EdgeHTML-based)from 1.0..0 before 10.0.17134.2087

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.
CISA KEV: Listed since 3 Nov 2021 · known ransomware use · catalogue entry
Public check: No public nuclei template
Weakness: Use After Free · Memory Corruption
Vendor: Microsoft
Published: March 2021
Band: Exploited in the wild, March 2021

What changed

5 Nov
CISA’s KEV entry now notes known ransomware use CISA
3 Nov 2021
CISA added it to the KEV catalogue CISA

CoverageNo articles yet

No CyberSIXT article names CVE-2021-26411 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.