A use-after-free vulnerability in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed.

Published 8 y ago 2018-06-11 · modified 4 mo ago 2026-06-17 · JSON

CVSS

9.8

v3.0 · NVD

CISA KEV

not known exploited

EPSS

2.6%

percentile 85%

Public exploits

none known

A use-after-free vulnerability in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Exploit prediction (EPSS)

2.58% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	9.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	7.5	`AV:N/AC:L/Au:N/C:P/I:P/A:P`

Affected products

Mozilla Firefox
Mozilla Firefox ESR
Mozilla Thunderbird

Classification

Weakness

CWE-416 Use After Free

References

securityfocus.com /bid/99057 · vdb-entry, x_refsource_BID, x_transferred
mozilla.org /security/advisories/mfsa2017-15/ · x_refsource_CONFIRM, x_transferred
debian.org /security/2017/dsa-3918 · vendor-advisory, x_refsource_DEBIAN, x_transferred
securitytracker.com /id/1038689 · vdb-entry, x_refsource_SECTRACK, x_transferred
debian.org /security/2017/dsa-3881 · vendor-advisory, x_refsource_DEBIAN, x_transferred
access.redhat.com /errata/RHSA-2017:1440 · vendor-advisory, x_refsource_REDHAT, x_transferred
access.redhat.com /errata/RHSA-2017:1561 · vendor-advisory, x_refsource_REDHAT, x_transferred
mozilla.org /security/advisories/mfsa2017-17/ · x_refsource_CONFIRM, x_transferred
bugzilla.mozilla.org /show_bug.cgi?id=1356824 · x_refsource_CONFIRM, x_transferred
mozilla.org /security/advisories/mfsa2017-16/ · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2017-7757
NVD: CVE-2017-7757

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