Vulnerability Details : CVE-2021-27246
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.
Vulnerability category: Execute code
Products affected by CVE-2021-27246
- cpe:2.3:o:tp-link:ac1750_firmware:1.0.15:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27246
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27246
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.9
|
HIGH | AV:A/AC:M/Au:N/C:C/I:C/A:C |
5.5
|
10.0
|
NIST | |
|
8.0
|
HIGH | CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
Zero Day Initiative | |
|
8.0
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
NIST |
CWE ids for CVE-2021-27246
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: zdi-disclosures@trendmicro.com (Primary)
References for CVE-2021-27246
-
https://www.zerodayinitiative.com/advisories/ZDI-21-215/
ZDI-21-215 | Zero Day InitiativeThird Party Advisory;VDB Entry
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