CVE-2022-26531

Summary

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.

Affected Software

VendorProductVersion RangeStatus
ZyxelUSG/ZyWALL series firmware4.09 through 4.71affected
ZyxelUSG FLEX series firmware4.50 through 5.21affected
ZyxelATP series firmware4.32 through 5.21affected
ZyxelVPN series firmware4.30 through 5.21affected
ZyxelNSG series firmware1.00 through 1.33 Patch 4affected
ZyxelNXC2500 firmware<= 6.10(AAIG.3)affected
ZyxelNAP203 firmware<= 6.25(ABFA.7)affected
ZyxelNWA50AX firmware<= 6.25(ABYW.5)affected
ZyxelWAC500 firmware<= 6.30(ABVS.2)affected
ZyxelWAX510D firmware<= 6.30(ABTF.2)affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

References