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Vulnerability details: VCID-5jvj-gf1t-vbec
Vulnerability ID VCID-5jvj-gf1t-vbec
Aliases CVE-2021-3689
GHSA-hq3v-rg6f-6hx4
Summary
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-330 Use of Insufficiently Random Values
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00449 https://api.first.org/data/v1/epss?cve=CVE-2021-3689
epss 0.00449 https://api.first.org/data/v1/epss?cve=CVE-2021-3689
epss 0.00449 https://api.first.org/data/v1/epss?cve=CVE-2021-3689
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-hq3v-rg6f-6hx4
cvssv3.1 7.5 https://github.com/yiisoft/yii2
generic_textual HIGH https://github.com/yiisoft/yii2
cvssv3.1 7.5 https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46
generic_textual HIGH https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46
cvssv3.1 7.5 https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f
generic_textual HIGH https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-3689
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-3689
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-3689
https://github.com/yiisoft/yii2
https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46
https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f
https://nvd.nist.gov/vuln/detail/CVE-2021-3689
GHSA-hq3v-rg6f-6hx4 https://github.com/advisories/GHSA-hq3v-rg6f-6hx4
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/yiisoft/yii2
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://huntr.dev/bounties/50aad1d4-eb00-4573-b8a4-dbe38e2c229f
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-3689
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.64033
EPSS Score 0.00449
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-12T02:02:39.833107+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 38.6.0