CVE-2023-31740
Published: 23 May 2023
Summary
CVE-2023-31740 is a high-severity Command Injection (CWE-77) vulnerability in Linksys E2000 Firmware. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 7.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability CVE-2023-31740 is a command injection flaw, tracked under CWE-77, that affects the Linksys E2000 router running firmware version 1.0.06. It exists in the apply.cgi web interface and allows manipulation of the WL_atten_bb, WL_atten_radio, and WL_atten_ctl POST parameters.
An attacker who first obtains web management privileges on the device can supply crafted values in these parameters to inject and execute arbitrary operating-system commands, ultimately obtaining shell access with high impact on confidentiality, integrity, and availability.
The provided references consist of linksys.com entries and a public technical report containing a proof-of-concept for the remote code execution path; they contain no explicit statements about patches, firmware updates, or other mitigations. The associated EPSS score has remained flat at 0.0908 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-36031
Vulnerability details
There is a command injection vulnerability in the Linksys E2000 router with firmware version 1.0.06. If an attacker gains web management privileges, they can inject commands into the post request parameters WL_atten_bb, WL_atten_radio, and WL_atten_ctl in the apply.cgi interface, thereby…
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gaining shell privileges.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.