CVE-2022-26531
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1004.09 - 4.71+ 1 more
- (no CPE)range: 4.09 - 4.71
- (no CPE)range: 4.09 through 4.71
4.50 - 5.21+ 1 more
- (no CPE)range: 4.50 - 5.21
- (no CPE)range: 4.50 through 5.21
4.30 - 5.21+ 1 more
- (no CPE)range: 4.30 - 5.21
- (no CPE)range: 4.30 through 5.21
- Range: 1.00 - 1.33 Patch 4
4.32 - 5.21+ 1 more
- (no CPE)range: 4.32 - 5.21
- (no CPE)range: 4.32 through 5.21
cpe:2.3:o:zyxel:usg_310_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:usg_310_firmware:*:*:*:*:*:*:*:*range: >=4.09,<=4.71
- cpe:2.3:o:zyxel:usg310_firmware:*:*:*:*:*:*:*:*range: >=4.09,<=4.71
- cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.21
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.21
- cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.21
- cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.21
- cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*Range: >=4.50,<=5.21
cpe:2.3:o:zyxel:nsg300_firmware:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:zyxel:nsg300_firmware:*:*:*:*:*:*:*:*range: >=1.00,<1.33
- cpe:2.3:o:zyxel:nsg300_firmware:1.33:-:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg300_firmware:1.33:patch1:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg300_firmware:1.33:patch2:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg300_firmware:1.33:patch3:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg300_firmware:1.33:patch4:*:*:*:*:*:*
cpe:2.3:o:zyxel:nsg100_firmware:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:zyxel:nsg100_firmware:*:*:*:*:*:*:*:*range: >=1.00,<1.33
- cpe:2.3:o:zyxel:nsg100_firmware:1.33:-:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg100_firmware:1.33:patch1:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg100_firmware:1.33:patch2:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg100_firmware:1.33:patch3:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg100_firmware:1.33:patch4:*:*:*:*:*:*
cpe:2.3:o:zyxel:nsg50_firmware:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:zyxel:nsg50_firmware:*:*:*:*:*:*:*:*range: >=1.00,<1.33
- cpe:2.3:o:zyxel:nsg50_firmware:1.33:-:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg50_firmware:1.33:patch1:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg50_firmware:1.33:patch2:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg50_firmware:1.33:patch3:*:*:*:*:*:*
- cpe:2.3:o:zyxel:nsg50_firmware:1.33:patch4:*:*:*:*:*:*
cpe:2.3:o:zyxel:nxc2500_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:nxc2500_firmware:*:*:*:*:*:*:*:*range: <=6.10\(aaig.3\)
- (no CPE)range: <= 6.10(AAIG.3)
cpe:2.3:o:zyxel:nap203_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:nap203_firmware:*:*:*:*:*:*:*:*range: <=6.25\(abfa.7\)
- (no CPE)range: <= 6.25(ABFA.7)
cpe:2.3:o:zyxel:nwa50ax_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:nwa50ax_firmware:*:*:*:*:*:*:*:*range: <=6.25\(abyw.5\)
- (no CPE)range: <= 6.25(ABYW.5)
- cpe:2.3:o:zyxel:nwa1123-ac-hd_firmware:*:*:*:*:*:*:*:*Range: <=6.25\(abin.6\)
- cpe:2.3:o:zyxel:nwa1123-ac-pro_firmware:*:*:*:*:*:*:*:*Range: <=6.25\(abhd.7\)
- cpe:2.3:o:zyxel:nwa1123acv3_firmware:*:*:*:*:*:*:*:*Range: <=6.30\(abvt.2\)
- cpe:2.3:o:zyxel:nwa5123-ac-hd_firmware:*:*:*:*:*:*:*:*Range: <=6.25\(abim.6\)
cpe:2.3:o:zyxel:wac500_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:wac500_firmware:*:*:*:*:*:*:*:*range: <=6.30\(abvs.2\)
- (no CPE)range: <= 6.30(ABVS.2)
- cpe:2.3:o:zyxel:wac5302d-s_firmware:*:*:*:*:*:*:*:*Range: <=6.10\(abfh.10\)
- cpe:2.3:o:zyxel:wac5302d-sv2_firmware:*:*:*:*:*:*:*:*Range: <=6.25\(abvz.6\)
cpe:2.3:o:zyxel:wax510d_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:zyxel:wax510d_firmware:*:*:*:*:*:*:*:*range: <=6.30\(abtf.2\)
- (no CPE)range: <= 6.30(ABTF.2)
- Range: 1.00 through 1.33 Patch 4
Patches
Vulnerability mechanics
References
4- www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtmlnvdVendor Advisory
- packetstormsecurity.com/files/167464/Zyxel-Buffer-Overflow-Format-String-Command-Injection.htmlnvd
- packetstormsecurity.com/files/177036/Zyxel-zysh-Format-String-Proof-Of-Concept.htmlnvd
- seclists.org/fulldisclosure/2022/Jun/15nvd
News mentions
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