Vulnerability Details : CVE-2023-39240
It is identified a format string vulnerability in ASUS RT-AX56U V2’s iperf client function API. This vulnerability is caused by lacking validation for a specific value within its set_iperf3_cli.cgi module. A remote attacker with administrator privilege can exploit this vulnerability to perform remote arbitrary code execution, arbitrary system operation or disrupt service.
Vulnerability category: Overflow
Products affected by CVE-2023-39240
- cpe:2.3:o:asus:rt-ac86u_firmware:3.0.0.4_386_51529:*:*:*:*:*:*:*
- cpe:2.3:o:asus:rt-ax55_firmware:3.0.0.4.386_50460:*:*:*:*:*:*:*
- cpe:2.3:o:asus:rt-ax56u_v2_firmware:3.0.0.4.386_50460:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-39240
1.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-39240
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
TWCERT/CC | 2024-03-27 |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
TWCERT/CC |
CWE ids for CVE-2023-39240
-
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.Assigned by: twcert@cert.org.tw (Primary)
References for CVE-2023-39240
-
https://www.twcert.org.tw/tw/cp-132-7356-021bf-1.html
TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報-ASUS RT-AX55、RT-AX56U_V2、RT-AC86U - Format String - 3Third Party Advisory
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