CVE-2021-27705
Published Apr 14, 2021
Last updated 4 years ago
Overview
- Description
- Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-120
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:tenda:g1_firmware:v15.11.0.17\\(9502\\)_cn:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98669DBF-D56B-4E2D-9A12-813CEC185170" } ], "operator": "OR" }, { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:h:tenda:g1:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FD313047-8A0F-44BD-A75B-F4CF2F4DD8F6" } ], "operator": "OR" } ], "operator": "AND" }, { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:tenda:g3_firmware:v15.11.0.17\\(9502\\)_cn:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "01254E20-AFFD-4A1A-A956-36BFD85017D4" } ], "operator": "OR" }, { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:h:tenda:g3:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7A1B3B7C-2164-40B6-959A-188796737C16" } ], "operator": "OR" } ], "operator": "AND" } ]