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 of it.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 16.94% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 20 March 2017
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- debian/debian linux · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · mozilla/thunderbird · mozilla/firefox
- Source
- security@mozilla.org
EPSS moved from 12.7% on 21 September 2026 to 16.9% on 27 October 2026, peaking at 17.3% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://rhn.redhat.com/errata/RHSA-2017-0459.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0461.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0498.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96664Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037966Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340138Exploit, Issue Tracking, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201705-06Third Party Advisory
- https://security.gentoo.org/glsa/201705-07Third Party Advisory
- https://www.debian.org/security/2017/dsa-3805Third Party Advisory
- https://www.debian.org/security/2017/dsa-3832Third Party Advisory
- https://www.exploit-db.com/exploits/41660/Exploit, Third Party Advisory, VDB Entry
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-07/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0459.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0461.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0498.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96664Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037966Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1340138Exploit, Issue Tracking, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201705-06Third Party Advisory
- https://security.gentoo.org/glsa/201705-07Third Party Advisory
- https://www.debian.org/security/2017/dsa-3805Third Party Advisory
- https://www.debian.org/security/2017/dsa-3832Third Party Advisory
- https://www.exploit-db.com/exploits/41660/Exploit, Third Party Advisory, VDB Entry
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-07/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.