| Vulnerability Name: | CVE-2022-26639 (CCN-222784) |
| Assigned: | 2022-03-06 |
| Published: | 2022-03-06 |
| Updated: | 2022-06-05 |
| Summary: | TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the DNSServers parameter.
|
| CVSS v3 Severity: | 7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)| Exploitability Metrics: | Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): High
Integrity (I): High
Availibility (A): High |
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.0 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)| Exploitability Metrics: | Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None | | Scope: | Scope (S): Unchanged
| | Impact Metrics: | Confidentiality (C): High
Integrity (I): High
Availibility (A): High |
|
| CVSS v2 Severity: | 6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)| Exploitability Metrics: | Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance | | Impact Metrics: | Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial |
7.7 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C)| Exploitability Metrics: | Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
| | Impact Metrics: | Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete |
|
| Vulnerability Type: | CWE-120
|
| Vulnerability Consequences: | Gain Access |
| References: | Source: MITRE
Type: CNA
CVE-2022-26639
Source: XF
Type: UNKNOWN
tplink-cve202226639-bo(222784)
Source: CCN
Type: GitHub Web site
tp-link tl-wr840n_DNSServers=.pdf
Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/tp-link%20tl-wr840n_DNSServers%3D.pdf
Source: CCN
Type: TP-Link Web site
TP-Link TL-WR840N
|
| Vulnerable Configuration: | Configuration 1:
cpe:/o:tp-link:tl-wr840n_firmware:0.9.1.4.16:*:*:*:*:*:*:*AND cpe:/h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*
Configuration CCN 1:
cpe:/h:tp-link:tl-wr840n:6.20:*:*:*:*:*:*:*
 Denotes that component is vulnerable |
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