What’s Vulnerable › Vulnerabilities

CVE-2019-17009

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-08 · updated 2026-06-17

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.

Affected products

• Mozilla Firefox: before 71.0 — fixed in 71.0
• Mozilla Firefox ESR: before 68.3 — fixed in 68.3
• Mozilla Thunderbird: before 68.3 — fixed in 68.3
• openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Mozilla Firefox 71.0; Mozilla Firefox ESR 68.3; Mozilla Thunderbird 68.3. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=1510494
• https://www.mozilla.org/security/advisories/mfsa2019-36/
• https://www.mozilla.org/security/advisories/mfsa2019-37/
• https://www.mozilla.org/security/advisories/mfsa2019-38/
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=1510494
• https://www.mozilla.org/security/advisories/mfsa2019-36/
• https://www.mozilla.org/security/advisories/mfsa2019-37/
• https://www.mozilla.org/security/advisories/mfsa2019-38/

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