CVE-2022-26531

Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to cause a buffer overflow or a system crash via a crafted payload.

• zyxel vpn100 firmware (>= 4.30 <= 5.21) • zyxel vpn1000 firmware (>= 4.30 <= 5.21) • zyxel vpn300 firmware (>= 4.30 <= 5.21) • zyxel vpn50 firmware (>= 4.30 <= 5.21) • zyxel atp100 firmware (>= 4.32 <= 5.21) • zyxel atp100w firmware (>= 4.32 <= 5.21) • zyxel atp200 firmware (>= 4.32 <= 5.21) • zyxel atp500 firmware (>= 4.32 <= 5.21) • zyxel atp700 firmware (>= 4.32 <= 5.21) • zyxel atp800 firmware (>= 4.32 <= 5.21) • zyxel usg 110 firmware (>= 4.09 <= 4.71) • zyxel usg 1100 firmware (>= 4.09 <= 4.71) • zyxel usg 1900 firmware (>= 4.09 <= 4.71) • zyxel usg 20w firmware (>= 4.09 <= 4.71) • zyxel usg 20w-vpn firmware (>= 4.09 <= 4.71) • zyxel usg 2200-vpn firmware (>= 4.09 <= 4.71) • zyxel usg 310 firmware (>= 4.09 <= 4.71) • zyxel usg 40 firmware (>= 4.09 <= 4.71) • zyxel usg 40w firmware (>= 4.09 <= 4.71) • zyxel usg 60 firmware (>= 4.09 <= 4.71) • zyxel usg 60w firmware (>= 4.09 <= 4.71) • zyxel usg flex 100 firmware (>= 4.50 <= 5.21) • zyxel usg flex 100w firmware (>= 4.50 <= 5.21) • zyxel usg flex 200 firmware (>= 4.50 <= 5.21) • zyxel usg flex 500 firmware (>= 4.50 <= 5.21) • zyxel usg flex 700 firmware (>= 4.50 <= 5.21) • zyxel usg200 firmware (>= 4.09 <= 4.71) • zyxel usg20 firmware (>= 4.09 <= 4.71) • zyxel usg210 firmware (>= 4.09 <= 4.71) • zyxel usg2200 firmware (>= 4.09 <= 4.71) • zyxel usg300 firmware (>= 4.09 <= 4.71) • zyxel usg310 firmware (>= 4.09 <= 4.71) • zyxel nsg300 firmware (>= 1.00 < 1.33) • zyxel nsg300 firmware 1.33 • zyxel nsg100 firmware (>= 1.00 < 1.33) • zyxel nsg100 firmware 1.33 • zyxel nsg50 firmware (>= 1.00 < 1.33) • zyxel nsg50 firmware 1.33 • zyxel nxc2500 firmware (<= 6.10\(aaig.3\)) • zyxel nxc5500 firmware (<= 6.10\(aaos.3\)) • zyxel nap203 firmware (<= 6.25\(abfa.7\)) • zyxel nap303 firmware (<= 6.25\(abex.7\)) • zyxel nap353 firmware (<= 6.25\(abey.7\)) • zyxel nwa50ax firmware (<= 6.25\(abyw.5\)) • zyxel nwa55axe firmware (<= 6.25\(abzl.5\)) • zyxel nwa90ax firmware (<= 6.27\(accv.2\)) • zyxel nwa110ax firmware (<= 6.30\(abtg.2\)) • zyxel nwa210ax firmware (<= 6.30\(abtd.2\)) • zyxel nwa1123-ac-hd firmware (<= 6.25\(abin.6\)) • zyxel nwa1123-ac-pro firmware (<= 6.25\(abhd.7\)) • zyxel nwa1123acv3 firmware (<= 6.30\(abvt.2\)) • zyxel nwa1302-ac firmware (<= 6.25\(abku.6\)) • zyxel nwa5123-ac-hd firmware (<= 6.25\(abim.6\)) • zyxel wac500h firmware (<= 6.30\(abwa.2\)) • zyxel wac500 firmware (<= 6.30\(abvs.2\)) • zyxel wac5302d-s firmware (<= 6.10\(abfh.10\)) • zyxel wac5302d-sv2 firmware (<= 6.25\(abvz.6\)) • zyxel wac6103d-i firmware (<= 6.25\(aaxh.7\)) • zyxel wac6303d-s firmware (<= 6.25\(abgl.6\)) • zyxel wac6502d-e firmware (<= 6.25\(aasd.7\)) … and 8 more