CVE-2021-43538Not scoredCWE-362

CVE-2021-43538: Mozilla Thunderbird vulnerability

Mozilla · Thunderbird

Vendor fix available · Affected: Mozilla Thunderbird · 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

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Affected products3

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

Mozilla · Thunderbirdbefore 91.4.0
Mozilla · Firefox ESRbefore 91.4.0
Mozilla · Firefoxbefore 95

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
Weakness: Race Condition · Race Conditions
Vendor: Mozilla
Published: December 2021
Band: Possible (1 to 10%), December 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-43538 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.