CVE-2015-4520

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 24 Sept 2015, 01:00
Last modified:06 Aug 2024, 06:18

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.4 MEDIUM
v2.0 (nvd)
EPSS Score
0.59% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Sept 2015, 01:00
Published
Vulnerability first disclosed
06 Aug 2024, 06:18
Last Modified
Vulnerability information updated

Description

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

CVSS Metrics

  • v2.0•MEDIUM•Score: 6.4AV:N/AC:L/Au:N/C:P/I:P/A:N

EPSS Trends

Current EPSS score: 0.59%• Percentile: 70%

Techniques & Countermeasures

  • CWE-254•7PK - Security Features

    Software security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.

Affected Systems

  • mozilla•firefox

    38.0 | 38.0.1 | 38.0.5 | 38.1.0 | 38.1.1 | 38.2.0 | 38.2.1 | ≤ 40.0.3

References (21)