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Medium severity · published May 24, 2022
CVE-2022-0734
A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50…
6.1
CVSS
9.4%
EPSS
No
On KEV
Description
A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.35 through 5.20, and VPN series firmware versions 4.35 through 5.20, that could allow an attacker to obtain some information stored in the user's browser, such as cookies or session tokens, via a malicious script.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)9.4% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Atp100 Firmware · Zyxel
4.35 through 5.20 · source: NVD
AF
Atp100w Firmware · Zyxel
4.35 through 5.20 · source: NVD
AF
Atp200 Firmware · Zyxel
4.35 through 5.20 · source: NVD
AF
Atp500 Firmware · Zyxel
4.35 through 5.20 · source: NVD
AF
Atp700 Firmware · Zyxel
4.35 through 5.20 · source: NVD
AF
Atp800 Firmware · Zyxel
4.35 through 5.20 · source: NVD
U1
Usg 110 Firmware · Zyxel
4.35 through 4.70 · source: NVD
U1
Usg 1100 Firmware · Zyxel
4.35 through 4.70 · source: NVD
U1
Usg 1900 Firmware · Zyxel
4.35 through 4.70 · source: NVD
U2
Usg 20w Firmware · Zyxel
4.35 through 4.70 · source: NVD
U2
Usg 20w-vpn Firmware · Zyxel
4.35 through 4.70 · source: NVD
U2
Usg 2200-vpn Firmware · Zyxel
4.35 through 4.70 · source: NVD
Affected product
AF
Atp100 Firmware
Zyxel
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0734
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-0734
Vendor Advisory
https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml
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