CVE-2012-3975

4.3 MEDIUM 2% exploit odds Fix listed

What it is

The DOMParser component in Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12 loads subresources during parsing of text/html data within an extension, which allows remote attackers to obtain sensitive information by providing crafted data to privileged extension code.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 1.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2012-08-29 10:56 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:44 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.9% in the next 30 days (EPSS).
Severity: 4.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2012-08-29 10:56 UTC
Last modified: 2026-06-16 23:44 UTC
Exploit probability: 1.9% · EPSS, next 30 days
Weakness: CWE-200 · Information exposure
Record status: Modified

Affected

Mozilla Firefox ≤ 14.0
Mozilla Firefox 1.0
Mozilla Firefox 1.0.1
Mozilla Firefox 1.0.2
Mozilla Firefox 1.0.3
Mozilla Firefox 1.0.4
Mozilla Firefox 1.0.5
Mozilla Firefox 1.0.6

Attack profile CVSS 2.0 · 4.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: None

Raw vector

AV:N/AC:M/Au:N/C:P/I:N/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-2012-3975.md and follow it. Check whether this project is affected by CVE-2012-3975. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

Fix and advisories

References

NVD record · CVE.org record