CVSS v3
9.8
CRITICAL
EPSS Score
21.3%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
A use-after-free error can occur when manipulating ranges in selections with one node inside a native anonymous tree and one node outside of it. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
A use-after-free error can occur when manipulating ranges in selections with one node inside a native anonymous tree and one node outside of it. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
Active exploitation of CVE-2017-5404 has not been confirmed. The EPSS score is 21.3%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2017-5404 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).