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CVE-2021-23995Not scoredCWE-672

CVE-2021-23995: Mozilla Firefox ESR vulnerability

Mozilla · Firefox ESR

Vendor fix available · Affected: Mozilla Firefox ESR · Exploitation: possible (1 to 10%)

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

1.2%probability of exploitation in the next 30 days
68th percentile
050100

Higher than 68% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Affected products3

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

  • Mozilla · Firefox ESRbefore 78.10
  • Mozilla · Thunderbirdbefore 78.10
  • Mozilla · Firefoxbefore 88

On the Atlas

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

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Mozilla
Published
June 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-23995 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.

References