Exploitation evidence
Known exploited · CISA KEV listed
Added 2022-05-25. Ransomware campaign use: Unknown.
CISA required action: Apply updates per vendor instructions.
CISA due date: 2022-06-15. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
n/a / n/a
Default status: Not specified
- affected: n/a
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://bugzilla.mozilla.org/show_bug.cgi?id=1179262
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00009.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00010.html
- http://www.securityfocus.com/bid/76249
- https://www.exploit-db.com/exploits/37772/
- http://rhn.redhat.com/errata/RHSA-2015-1581.html
- https://security.gentoo.org/glsa/201512-10
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html
- http://www.ubuntu.com/usn/USN-2707-1
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1178058
- https://blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/
- http://www.mozilla.org/security/announce/2015/mfsa2015-78.html
- http://www.securitytracker.com/id/1033216
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4495
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.68558,
"percentile": 0.99349
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.68558,
"percentile": 0.99345
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.68558,
"percentile": 0.99344
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.68558,
"percentile": 0.99343
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.68558,
"percentile": 0.99343
}07 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
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}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
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"epss": 0.68558,
"percentile": 0.99342
}05 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.68558,
"percentile": 0.99341
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.68558,
"percentile": 0.99341
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.68558,
"percentile": 0.99339
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.68558,
"percentile": 0.99339
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
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"notes": "https://nvd.nist.gov/vuln/detail/CVE-2015-4495",
"product": "Firefox",
"requiredAction": "Apply updates per vendor instructions.",
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