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CVE-2017-7828

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in…

Critical9.8EPSS 7.2%
Published
Updated
Reserved
Assigned by
mozilla

Description

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

Scores

CVSS scores of CVE-2017-7828, 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)
7.2% · top 5.7% 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 – < 57

  • Mozilla · Firefox ESR

    • affected unspecified – < 52.5

  • Mozilla · Thunderbird

    • affected unspecified – < 52.5

References (14)

Sources

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

Record last updated .