High severity · published Apr 24, 2023
CVE-2023-22917
A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35, which could allow a remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Atp100 Firmware · Zyxel
5.10 through 5.32 · source: NVD
AF
Atp100w Firmware · Zyxel
5.10 through 5.32 · source: NVD
AF
Atp200 Firmware · Zyxel
5.10 through 5.32 · source: NVD
AF
Atp500 Firmware · Zyxel
5.10 through 5.32 · source: NVD
AF
Atp700 Firmware · Zyxel
5.10 through 5.32 · source: NVD
AF
Atp800 Firmware · Zyxel
5.10 through 5.32 · source: NVD
U2
Usg 20w-vpn Firmware · Zyxel
5.10 through 5.32 · source: NVD
UF
Usg Flex 100 Firmware · Zyxel
5.00 through 5.32 · source: NVD
UF
Usg Flex 100w Firmware · Zyxel
5.00 through 5.32 · source: NVD
UF
Usg Flex 200 Firmware · Zyxel
5.00 through 5.32 · source: NVD
UF
Usg Flex 50 Firmware · Zyxel
5.00 through 5.32 · source: NVD
UF
Usg Flex 500 Firmware · Zyxel
5.00 through 5.32 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22917
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22917
Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-of-firewalls-and-aps
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