CVE-2020-8165

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 19 Jun 2020, 17:05
Last modified:09 May 2025, 20:03

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
90.13% CRITICAL
90% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

19 Jun 2020, 17:05
Published
Vulnerability first disclosed
09 May 2025, 20:03
Last Modified
Vulnerability information updated

Description

A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 90.13%• Percentile: 100%

Techniques & Countermeasures

  • CWE-502•Deserialization of Untrusted Data

    The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Systems

  • debian•debian_linux

    8.0 | 9.0 | 10.0

  • opensuse•leap

    15.1 | 15.2

  • rubyonrails•rails

    < 5.2.4.3 | ≥ 6.0.0, < 6.0.3.1

References (9)