NULL pointer dereference in Zyxel ATP series firmware
Priority LOW 29CWE-476Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service (DoS) conditions by downloading a crafted RAR compressed file onto a LAN-side host if the firewall has the “Anti-Malware” feature enabled.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.003 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zyxel | ATP series firmware | version 4.32 through 5.37 Patch 1 | — | No fix listed | CNA |
| Zyxel | USG FLEX series firmware | version 4.50 through 5.37 Patch 1 | — | No fix listed | CNA |
- ATP series firmware VendorZyxel Affected version 4.32 through 5.37 Patch 1 Fixed in — No fix listed CNA
- USG FLEX series firmware VendorZyxel Affected version 4.50 through 5.37 Patch 1 Fixed in — No fix listed CNA
CPE configurations NVD · 76
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp100_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp100_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp100w_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp100w_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp200_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
- cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp100_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp100_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp100w_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp100w_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp200_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
Show 66 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:zyxel:atp200_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp500_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp500_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp700_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp700_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* | 4.32 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp800_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:atp800_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100ax_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100h_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_100h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200h_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_200h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200hp_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_200hp:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500h_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_500h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700h_firmware:*:*:*:*:*:*:*:* | 4.50 to before 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:-:*:*:*:*:*:* | 5.37 | Vulnerable | Zyxel |
| cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:patch1:*:*:*:*:*:* | 5.37 patch1 | Vulnerable | Zyxel |
| cpe:2.3:h:zyxel:usg_flex_700h:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Zyxel |
- cpe:2.3:o:zyxel:atp200_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp500_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp500_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp700_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp700_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* Versions 4.32 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp800_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:atp800_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100ax_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100ax_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100h_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100h_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_100h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200h_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200h_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_200h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200hp_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_200hp_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_200hp:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500h_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_500h_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_500h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700h_firmware:*:*:*:*:*:*:*:* Versions 4.50 to before 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:-:*:*:*:*:*:* Versions 5.37 Vulnerable ·Zyxel
- cpe:2.3:o:zyxel:usg_flex_700h_firmware:5.37:patch1:*:*:*:*:*:* Versions 5.37 patch1 Vulnerable ·Zyxel
- cpe:2.3:h:zyxel:usg_flex_700h:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Zyxel ATP series firmware, USG FLEX series firmware — zyxel.com/global/en/support/security-advisories/zyxel-secur…
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2023-06180 A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series…Priority LOW 39
- TI-2023-05872 OS command injection in Zyxel ATP series firmwarePriority LOW 36
- TI-2023-05873 A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through…Priority LOW 30
Timeline
- 2026-10-02 Threatist record created from CVE-2023-6397
- 2026-10-03 Alias added: GHSA-wj52-rfj4-xjcm
References
More Zyxel Atp100 Firmware vulnerabilities
- TI-2023-16198 Buffer overflow in Zyxel ATP series firmware KEVCVSS 3.1CRITICAL 9.8
- TI-2023-16197 Buffer overflow in Zyxel ATP series firmware KEVCVSS 3.1CRITICAL 9.8
- TI-2023-13281 OS command injection in Zyxel ZyWALL/USG series firmware KEVCVSS 3.1CRITICAL 9.8
- TI-2022-12682 OS command injection in Zyxel USG FLEX 100 firmware KEVCVSS 3.1CRITICAL 9.8
- TI-2020-17772 Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-07267 OS command injection in Zyxel NAS326 KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-6397 · CVE Program
- CVE-2023-6397 · NVD
- FIRST EPSS
- GHSA-wj52-rfj4-xjcm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences