CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2022-43391
Medium (6.5) in zyxel. EPSS 0.7% chance of exploitation in the next 30 days.
A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
- CWE
- CWE-120
- Published
- Modified
- Record from
- the NVD, synced
Affected
- zyxel:ax7501-b0_firmware
- zyxel:dx3301-t0_firmware
- zyxel:dx4510-b1_firmware
- zyxel:dx5401-b0_firmware
- zyxel:emg3525-t50b_firmware
- zyxel:emg5523-t50b_firmware
- zyxel:emg5723-t50k_firmware
- zyxel:ex3301-t0_firmware
- zyxel:ex3510-b0_firmware
- zyxel:ex5401-b0_firmware
- zyxel:ex5501-b0_firmware
- zyxel:ex5510-b0_firmware
- zyxel:ex5512-t0_firmware
- zyxel:ex5600-t1_firmware
- zyxel:ex5601-t0_firmware
- zyxel:ex5601-t1_firmware
- zyxel:lte3301-plus_firmware
- zyxel:lte5388-m804_firmware
- zyxel:lte5398-m904_firmware
- zyxel:lte7240-m403_firmware
- zyxel:lte7461-m602_firmware
- zyxel:lte7480-m804_firmware
- zyxel:lte7480-s905_firmware
- zyxel:lte7485-s905_firmware
- zyxel:lte7490-m904_firmware
- zyxel:nebula_lte3301-plus_firmware
- zyxel:nebula_lte7461-m602_firmware
- zyxel:nebula_nr5101_firmware
- zyxel:nebula_nr7101_firmware
- zyxel:nr5101_firmware
- zyxel:nr7101_firmware
- zyxel:nr7102_firmware
- zyxel:pm3100-t0_firmware
- zyxel:pm5100-t0_firmware
- zyxel:pm7300-t0_firmware
- zyxel:pm7320-b0_firmware
- zyxel:pmg5317-t20b_firmware
- zyxel:pmg5617-t20b2_firmware
- zyxel:pmg5617ga_firmware
- zyxel:pmg5622ga_firmware
- zyxel:vmg3927-t50k_firmware
- zyxel:vmg4005-b50a_firmware
- zyxel:vmg4005-b60a_firmware
- zyxel:vmg8623-t50b_firmware
- zyxel:vmg8825-t50k_firmware
- zyxel:wx3100-t0_firmware
- zyxel:wx3401-b0_firmware
- zyxel:wx5600-t0_firmware
References
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders