CVE-2015-4478: canonical ubuntu_linux
Vulnerability summary
CVE-2015-4478 is a medium (CVSS 5.0) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.81% chance of exploitation in the next 30 days, higher than 86.5% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 7Timeline
- 16-08-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 do not impose certain ECMAScript 6 requirements on JavaScript object properties, which allows remote attackers to bypass the Same Origin Policy via the reviver parameter to the JSON.parse method.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.81%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
Decrease -0.56 pp
From 3.37% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.04
Mozilla1 product
- firefox≤ 39.0.3 | 38.0 | 38.0.1 | 38.0.5 | 38.1.0
Opensuse1 product
- opensuseEOL13.1 | 13.2
Ubuntu1 product
- firefox< 40.0+build4-0ubuntu0.14.04.1
4 vendors · 4 products
References
21 links- bugzilla.mozilla.org/show_bug.cgi?id=1105914X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlX Refsource CONFIRM
