CVE-2021-3689
Published: 10 August 2021
Summary
CVE-2021-3689 is a high-severity Use of Predictable Algorithm in Random Number Generator (CWE-1241) vulnerability in Yiiframework Yii. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 36.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-2074
Vulnerability details
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Key generation under controlled management uses approved random-bit sources rather than insufficiently random values.