Critical severity · published Aug 20, 2026
CVE-2026-77022
Comfast CF-N1-S SSID Configuration mbox-config sub_44B438 stack-based overflow
9.9
CVSS
0.8%
EPSS
No
On KEV
Description
A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is the function sub_44B438 of the file /cgi-bin/mbox-config?method=SET§ion=ptest_ssid of the component SSID Configuration. The manipulation of the argument ssid results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
CF-N1-S · Comfast
2.6.0.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77022
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77022
github.com
https://github.com/AdminSafe/CVE/issues/5
vuldb.com
https://vuldb.com/cve/CVE-2026-77022
vuldb.com
https://vuldb.com/submit/880599
vuldb.com
https://vuldb.com/vuln/393637
vuldb.com
https://vuldb.com/vuln/393637/cti
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