CVE-2019-17015
During the initialization of a new content process, a pointer offset can be manipulated leading to memory corruption and a potentially exploitable crash in the parent process. *Note: this issue only occurs on Windows.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.81%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
During the initialization of a new content process, a pointer offset can be manipulated leading to memory corruption and a potentially exploitable crash in the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.81% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mozilla/firefox · mozilla/firefox esr
- Source
- security@mozilla.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1599005Permissions Required
- https://seclists.org/bugtraq/2020/Jan/18Mailing List, Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-02/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html
- http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1599005Permissions Required
- https://seclists.org/bugtraq/2020/Jan/18Mailing List, Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-02/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.