CVE-2016-2830 Information disclosure in n/a

What is CVE-2016-2830?

CVE-2016-2830 is a medium-severity vulnerability in Mozilla Firefox, published on 5 Aug 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

Weakness: CWE-200

Which versions are affected by CVE-2016-2830?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-2830?

Upgrade to a fixed version.

Is CVE-2016-2830 being exploited?

There is no known exploitation of CVE-2016-2830 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2016-2830, GHSA-wfq5-5w67-p795, UBUNTU-CVE-2016-2830.