CVE-2015-0820 json
Mozilla Firefox before 36.0 does not properly restrict transitions of JavaScript objects from a non-extensible state to an extensible state…
published 2015-02-25 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-0833
- cvss
- 2.6
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- firefox Ubuntu 14.04 LTS 36.0+build2-0ubuntu0.14.04.4
ubuntu advisories UBUNTU-CVE-2015-0820
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- firefox-esr openSUSE Tumbleweed 128.5.1-1.1
- MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1
Exploit prediction
1.75% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 2.6 | AV:N/AC:H/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
security.gentoo.org
/glsa/201504-01
vendor-advisory
-
lists.opensuse.org
/opensuse-security-announce/2015-03/msg00000.html
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-updates/2015-03/msg00067.html
vendor-advisory, third-party-advisory
-
ubuntu.com
/usn/USN-2505-1
vendor-advisory, third-party-advisory
-
mozilla.org
/security/announce/2015/mfsa2015-27.html
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1125389
issue-tracking
-
securityfocus.com
/bid/72757
vdb-entry, third-party-advisory
- oracle.com /technetwork/topics/security/bulletinapr2016-2952098.html
Sources
- CVE List CVE-2015-0820
- NVD CVE-2015-0820
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.