CVE-2022-26531
- State
- Published
- Severity
- 6.1 Medium
- Published
- May 24, 2022
- Updated
- Aug 3, 2024
- Reserved
- Mar 7, 2022
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H | Zyxel |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
USG/ZyWALL series firmwareZyxel |
|
USG FLEX series firmwareZyxel |
|
ATP series firmwareZyxel |
|
VPN series firmwareZyxel |
|
NSG series firmwareZyxel |
|
NXC2500 firmwareZyxel |
|
NAP203 firmwareZyxel |
|
NWA50AX firmwareZyxel |
|
WAC500 firmwareZyxel |
|
WAX510D firmwareZyxel |
|
References
- https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml
- 20220610 HNS-2022-02 - HN Security Advisory - Multiple vulnerabilities in Zyxel zyshmailing-list
- http://packetstormsecurity.com/files/167464/Zyxel-Buffer-Overflow-Format-String-Command-Injection.html
- http://packetstormsecurity.com/files/177036/Zyxel-zysh-Format-String-Proof-Of-Concept.html
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