Vulnerability in Yiiframework Yii
CVE-2021-3689
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Yiiframework Yii
- Yiisoft Yiisoft/yii2 — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f (Exploit, Third Party Advisory)
- github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3689?
- CVE-2021-3689 is a high-severity vulnerability in Yiiframework Yii, classified under CWE-1241. CVSS score: 7.5/10. Published 2021-08-10.
- How severe is CVE-2021-3689?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-3689 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.