---
id: "CVE-2013-1675"
kind: "vulnerability"
aliases: ["CVE-2013-1675"]
title: "Mozilla Firefox: Mozilla Firefox Information Disclosure Vulnerability"
severity: "medium"
cvss: 6.5
epss: 0.06696
exploited: true
status: "open"
category: "package"
products: [{"name": "Mozilla Firefox", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["desktop-browsers", "exploited", "firefox", "package"]
not_affected_if: ["firefox-not-installed", "fixed-version-running"]
published_at: "2013-05-16T11:45:30+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-1675", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2013-1675", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1675", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Mozilla Firefox: Mozilla Firefox Information Disclosure Vulnerability

Firefox does not initialize memory for SVG zoom event fields, so a crafted web page can read uninitialized data from the browser process memory. An attacker gets sensitive information from memory, not code execution.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Mozilla Firefox affected ? fixed ?

## Fix

Update Firefox to a release that includes the Mozilla fix for CVE-2013-1675; the exact fixed version is not stated in the sources.
CISA's required action is to apply the vendor updates.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2013-1675
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2013-1675
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2013-1675

## From the sources

Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_