CVE-2021-38691
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
A stack buffer overflow vulnerability has been reported to affect QNAP device running QVR Elite, QVR Pro, QVR Guard. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QVR Elite, QVR Pro, QVR Guard: QuTS hero h5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QuTS hero h4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 5.0.0: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Elite 2.1.4.0 (2021/12/06) and later QTS 4.5.4: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Pro 2.1.3.0 (2021/12/06) and later QTS 4.5.4: QVR Guard 2.1.3.0 (2021/12/06) and later QTS 5.0.0: QVR Guard 2.1.3.0 (2021/12/06) and later
Overview
- CVE ID
- CVE-2021-38691
- Assigner
- security@qnapsecurity.com.tw
- Vulnerability Status
- Analyzed
- Published Version
- 2022-01-14T01:15:08
- Last Modified Date
- 2022-01-25T15:30:33
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:qnap:qvr_elite:*:*:*:*:*:*:*:* | 1 | OR | 2.1.4.0 | |
| cpe:2.3:a:qnap:qvr_guard:*:*:*:*:*:*:*:* | 1 | OR | 2.1.3.0 | |
| cpe:2.3:a:qnap:qvr_pro:*:*:*:*:*:*:*:* | 1 | OR | 2.1.3.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.qnap.com/en/security-advisory/qsa-21-59 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-38691 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38691 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:36:17 | Added to TrackCVE | |||
| 2022-12-06 06:34:37 | security@qnap.com | security@qnapsecurity.com.tw | CVE Assigner | updated |
| 2022-12-06 06:34:37 | 2022-01-14T01:15Z | 2022-01-14T01:15:08 | CVE Published Date | updated |
| 2022-12-06 06:34:37 | 2022-01-25T15:30:33 | CVE Modified Date | updated | |
| 2022-12-06 06:34:37 | Analyzed | Vulnerability Status | updated |