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High 8.8Known exploited (CISA KEV)Published Aug 8, 2015
CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain p…
Updated under an hour ago ()
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It affects mozilla firefox and 14 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since May 25, 2022; federal agencies had to remediate by Jun 15, 2022. Treat that date as your deadline.
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The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-346
- Known exploited
- Added to CISA KEV May 25, 2022; federal remediation due Jun 15, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 68.56% (percentile 99)
- Assigned by
- mozilla
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mozilla firefox mozilla:firefox | before 39.0.3; from 38.0 before 38.1.1 | NVD |
mozilla firefox_os mozilla:firefox_os | before 2.2 | NVD |
oracle solaris oracle:solaris | 11.3 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04; 14.04; 15.04 | NVD |
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop | 5.0; 6.0; 7.0 | NVD |
redhat enterprise_linux_eus redhat:enterprise_linux_eus | 6.7; 7.1; 7.2; 7.3; 7.4; 7.5; 7.6; 7.7 | NVD |
redhat enterprise_linux_server redhat:enterprise_linux_server | 5.0; 6.0; 7.0 | NVD |
redhat enterprise_linux_server_aus redhat:enterprise_linux_server_aus | 7.3; 7.4; 7.6; 7.7 | NVD |
redhat enterprise_linux_server_tus redhat:enterprise_linux_server_tus | 7.3; 7.6; 7.7 | NVD |
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation | 5.0; 6.0; 7.0 | NVD |
suse linux_enterprise_debuginfo suse:linux_enterprise_debuginfo | 11; 11; 11; 11 | NVD |
opensuse opensuse opensuse:opensuse | 13.1; 13.2 | NVD |
suse linux_enterprise_desktop suse:linux_enterprise_desktop | 11; 11; 12 | NVD |
suse linux_enterprise_server suse:linux_enterprise_server | 11; 11; 11; 11; 11; 12 | NVD |
suse linux_enterprise_software_development_kit suse:linux_enterprise_software_development_kit | 11; 11; 12 | NVD |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1179262x-refsource-confirm, issue-tracking
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00009.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00010.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://www.securityfocus.com/bid/76249vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- https://www.exploit-db.com/exploits/37772/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- http://rhn.redhat.com/errata/RHSA-2015-1581.htmlvendor-advisory, x-refsource-redhat, third-party-advisory
- https://security.gentoo.org/glsa/201512-10vendor-advisory, x-refsource-gentoo, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://www.ubuntu.com/usn/USN-2707-1vendor-advisory, x-refsource-ubuntu, third-party-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlx-refsource-confirm, patch, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1178058x-refsource-confirm, issue-tracking
- https://blog.mozilla.org/security/2015/08/06/firefox-exploit-found-in-the-wild/x-refsource-confirm, issue-tracking, vendor-advisory
- http://www.mozilla.org/security/announce/2015/mfsa2015-78.htmlx-refsource-confirm, vendor-advisory
- http://www.securitytracker.com/id/1033216vdb-entry, x-refsource-sectrack, broken-link, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-4495us-government-resource
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