CVE-2019-17009

Name: CVE-2019-17009
Creator: NVD / NIST
Published: 2020-01-08T22:15:11.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2019-17009 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.33%

25.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 71.0
Mozilla	Firefox Esr	< 68.3
Mozilla	Thunderbird	< 68.3
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1510494Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-37/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-38/Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.htmlMailing List, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1510494Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-37/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-38/Vendor Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-17009?

How severe is CVE-2019-17009?

CVE-2019-17009 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17009?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17009?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST