A buffer overflow vulnerability in the ID processing function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
ATP series firmware
Vendor
Zyxel
Product
ATP series firmware
Platforms
Unknown
Default status
Unknown
ATP series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
4.32 through 5.36 Patch 1
affected
Unavailable
Unavailable
Unavailable
None listed
USG FLEX series firmware
Vendor
Zyxel
Product
USG FLEX series firmware
Platforms
Unknown
Default status
Unknown
USG FLEX series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
4.50 through 5.36 Patch 1
affected
Unavailable
Unavailable
Unavailable
None listed
USG FLEX 50(W) firmware
Vendor
Zyxel
Product
USG FLEX 50(W) firmware
Platforms
Unknown
Default status
Unknown
USG FLEX 50(W) firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
4.25 through 5.36 Patch 1
affected
Unavailable
Unavailable
Unavailable
None listed
USG20(W)-VPN firmware
Vendor
Zyxel
Product
USG20(W)-VPN firmware
Platforms
Unknown
Default status
Unknown
USG20(W)-VPN firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
4.25 through 5.36 Patch 1
affected
Unavailable
Unavailable
Unavailable
None listed
VPN series firmware
Vendor
Zyxel
Product
VPN series firmware
Platforms
Unknown
Default status
Unknown
VPN series firmware · Scoped product and version facts
Version (version)
Status (status)
Version scheme (versionType)
Exclusive end (lessThan)
Inclusive end (lessThanOrEqual)
Status changes (at → status)
4.30 through 5.36 Patch 1
affected
Unavailable
Unavailable
Unavailable
None listed
ZyWALL/USG series firmware
Vendor
Zyxel
Product
ZyWALL/USG series firmware
Platforms
Unknown
Default status
Unknown
ZyWALL/USG series firmware · Scoped product and version facts