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Vulnerability IntelligenceCVE-2026-7503

CVE-2026-7503

HIGH8.8

code-projects for Plugin cstecgi.cgi setWiFiMultipleConfig buffer overflow

Published Apr 30, 2026

Modified 3 days ago

Details

A vulnerability was detected in code-projects for Plugin 4.1.2cu.5137. The impacted element is the function setWiFiMultipleConfig in the library /lib/cste_modules/wireless.so of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument wepkey2 results in buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.

References

https://code-projects.org/

https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/02_Buffer_Overflow_setWiFiMultipleConfig.md

https://vuldb.com/submit/803120

https://vuldb.com/vuln/360313

https://vuldb.com/vuln/360313/cti

https://www.cve.org/CVERecord?id=CVE-2026-7503

CVSS Analysis

CVSS v4.0

8.7

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

HighVI:H

Vuln. Availability

HighVA:H

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

8.7/CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Weakness Type (CWE)

Memory Safety

Buffer Overflow

Classic Buffer Overflow

Ecosystems

Timeline

PublishedApr 30, 2026

ModifiedMay 4, 2026

CVE-2026-7503 | Mondoo Vulnerability Intelligence