CVE-2015-0820
Mozilla Firefox before 36.0 does not properly restrict transitions of JavaScript objects from a non-extensible state to an extensible state, which allows remote attackers to bypass a Caja Compiler sandbox protection mechanism or a Secure EcmaScript…
Does this matter?
Lower severity and a low EPSS score (1.75%). Track it; it rarely justifies an emergency change on its own.
Description
Mozilla Firefox before 36.0 does not properly restrict transitions of JavaScript objects from a non-extensible state to an extensible state, which allows remote attackers to bypass a Caja Compiler sandbox protection mechanism or a Secure EcmaScript sandbox protection mechanism via a crafted web site.
- CVSS 2.0
- 2.6 LOWAV:N/AC:H/Au:N/C:N/I:P/A:N
- EPSS
- 1.75% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- opensuse/opensuse · mozilla/firefox · canonical/ubuntu linux
- Source
- security@mozilla.org
EPSS 1.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00067.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2015/mfsa2015-27.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/72757Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2505-1Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1125389Issue Tracking
- https://security.gentoo.org/glsa/201504-01
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00067.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2015/mfsa2015-27.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/72757Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2505-1Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1125389Issue Tracking
- https://security.gentoo.org/glsa/201504-01
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.