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Vulnerability details: VCID-x444-96ea-pfc4
Vulnerability ID VCID-x444-96ea-pfc4
Aliases CVE-2012-0458
Summary Security researcher Mariusz Mlynski reported that an attacker able to convince a potential victim to set a new home page by dragging a link to the "home" button can set that user's home page to a javascript: URL. Once this is done the attacker's page can cause repeated crashes of the browser, eventually getting the script URL loaded in the privileged about:sessionrestore context.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.02067 https://api.first.org/data/v1/epss?cve=CVE-2012-0458
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2012-16
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2012-0458.json
https://api.first.org/data/v1/epss?cve=CVE-2012-0458
803113 https://bugzilla.redhat.com/show_bug.cgi?id=803113
CVE-2012-0458 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0458
GLSA-201301-01 https://security.gentoo.org/glsa/201301-01
mfsa2012-16 https://www.mozilla.org/en-US/security/advisories/mfsa2012-16
RHSA-2012:0387 https://access.redhat.com/errata/RHSA-2012:0387
RHSA-2012:0388 https://access.redhat.com/errata/RHSA-2012:0388
USN-1400-1 https://usn.ubuntu.com/1400-1/
USN-1400-3 https://usn.ubuntu.com/1400-3/
USN-1401-1 https://usn.ubuntu.com/1401-1/
USN-1401-2 https://usn.ubuntu.com/1401-2/
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.8421
EPSS Score 0.02067
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T08:27:20.026239+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2012/mfsa2012-16.md 38.6.0