CVE-2016-5256 Memory corruption in n/a

What is CVE-2016-5256?

CVE-2016-5256 is a critical memory corruption vulnerability in Mozilla Firefox, published on 22 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Weakness: CWE-119

Which versions are affected by CVE-2016-5256?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-5256?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2016-5256 being exploited?

There is no known exploitation of CVE-2016-5256 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 GHSA-6m4q-5fp8-jrhp, UBUNTU-CVE-2016-5256.