CVE-2021-42911
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
A Format String vulnerability exists in DrayTek Vigor 2960 <= 1.5.1.3, DrayTek Vigor 3900 <= 1.5.1.3, and DrayTek Vigor 300B <= 1.5.1.3 in the mainfunction.cgi file via a crafted HTTP message containing malformed QUERY STRING, which could let a remote malicious user execute arbitrary code.
Overview
- CVE ID
- CVE-2021-42911
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-29T20:15:07
- Last Modified Date
- 2022-04-05T18:20:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:draytek:vigor2960_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.5.1.3 | |
| cpe:2.3:h:draytek:vigor2960:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:draytek:vigor3900_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.5.1.3 | |
| cpe:2.3:h:draytek:vigor3900:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:draytek:vigor300b_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.5.1.3 | |
| cpe:2.3:h:draytek:vigor300b:-:*:*:*:*:*:*:* | 0 | OR |
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://gist.github.com/Cossack9989/e9c1c2d2e69b773ca4251acdd77f2835 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-42911 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42911 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:40:31 | Added to TrackCVE | |||
| 2022-12-06 13:38:44 | 2022-03-29T20:15Z | 2022-03-29T20:15:07 | CVE Published Date | updated |
| 2022-12-06 13:38:44 | 2022-04-05T18:20:46 | CVE Modified Date | updated | |
| 2022-12-06 13:38:44 | Analyzed | Vulnerability Status | updated |