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CVE-2017-5404

A use-after-free error can occur when manipulating ranges in selections with one node inside a native anonymous tree and one node outside…

Critical9.8EPSS 16.9%
Published
Updated
Reserved
Assigned by
mozilla

Description

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.

Scores

CVSS scores of CVE-2017-5404, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Critical9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
16.9% · top 2.9% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • Mozilla · Firefox

    • affected unspecified – < 52

  • Mozilla · Firefox ESR

    • affected unspecified – < 45.8

  • Mozilla · Thunderbird

    • affected unspecified – < 52
    • affected unspecified – < 45.8

References (15)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .