CVE-2019-11717 Other in Firefox

What is CVE-2019-11717?

CVE-2019-11717 is a medium-severity vulnerability in Debian Debian Linux, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

Weakness: CWE-116

Which versions are affected by CVE-2019-11717?

It affects 5 products.

Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Novell Suse Package Hub for Suse Linux Enterprise, Opensuse Leap.

How do I fix CVE-2019-11717?

Upgrade to a fixed version.

Is CVE-2019-11717 being exploited?

There is no known exploitation of CVE-2019-11717 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-11717, GHSA-vp8c-39q7-pxqc, UBUNTU-CVE-2019-11717.