CVE-2016-5253

4.7 MEDIUM 0.2% exploit odds Fix listed

What it is

The Updater in Mozilla Firefox before 48.0 on Windows allows local users to write to arbitrary files via vectors involving the callback application-path parameter and a hard link.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of data tampering.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2016-08-05 01:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:49 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.2% in the next 30 days (EPSS).
Severity: 4.7 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2016-08-05 01:59 UTC
Last modified: 2026-06-17 00:49 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-264
Record status: Modified

Affected

Mozilla Firefox ≤ 47.0.1

Attack profile CVSS 3.0 · 4.7

Attack vector: Local
Complexity: High
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Raw vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2016-5253.md and follow it. Check whether this project is affected by CVE-2016-5253. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record