CVE-2014-1577

What it is

The mozilla::dom::OscillatorNodeEngine::ComputeCustom function in the Web Audio subsystem in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read, memory corruption, and application crash) via an invalid custom waveform that triggers a calculation of a negative frequency value.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

2.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2014-10-15 10:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:05 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.9% in the next 30 days (EPSS).
• Severity: 6.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-10-15 10:55 UTC

Last modified

2026-06-17 00:05 UTC

Exploit probability

2.9% · EPSS, next 30 days

Record status

Modified

Affected

• Mozilla Firefox 31.0
• Mozilla Firefox 31.1.0
• Mozilla Thunderbird 31.0
• Mozilla Thunderbird 31.1.0
• Mozilla Firefox ≤ 32.0
• Mozilla Firefox 30.0

Attack profile CVSS 2.0 · 6.4

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

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-2014-1577.md and follow it. Check whether this project is affected by CVE-2014-1577. 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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