CVE-2022-43389
High
Description
A buffer overflow vulnerability in the library of the web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
SeverityHigh
CVSS8.6
Exploit probability—
Product
Zyxel Nr7101 Firmware
PublishedJan 11, 2023
First seenJan 11, 2023
Weakness typeCWE-120CWE-120
How to fix
Update
- zyxel nr7101_firmware1.00\(abuv.7\)c0 or later
- zyxel lte3202-m437_firmware1.00\(abwf.1\)c0 or later
- zyxel lte3316-m604_firmware2.00\(abmp.6\)c0 or later
- zyxel lte7480-m804_firmware1.00\(abra.6\)c0 or later
- zyxel lte7490-m904_firmware1.00\(abqy.5\)c0 or later
- zyxel nebula_fwa510_firmware1.15\(acgd.3\)c0 or later
- zyxel nebula_fwa710_firmware1.15\(acgc.3\)c0 or later
- zyxel nebula_nr7101_firmware1.15\(accc.3\)c0 or later
- zyxel nr5103_firmware4.19\(abyc.3\)c0 or later
- zyxel nr7102_firmware1.00\(abyd.2\)c0 or later
- zyxel nr7103_firmware1.00\(accz.1\)c0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zyxel nr7101_firmware | v < 1.00\(abuv.7\)c0 | 1.00\(abuv.7\)c0 |
| zyxel lte3202-m437_firmware | v < 1.00\(abwf.1\)c0 | 1.00\(abwf.1\)c0 |
| zyxel lte3316-m604_firmware | v < 2.00\(abmp.6\)c0 | 2.00\(abmp.6\)c0 |
| zyxel lte7480-m804_firmware | v < 1.00\(abra.6\)c0 | 1.00\(abra.6\)c0 |
| zyxel lte7490-m904_firmware | v < 1.00\(abqy.5\)c0 | 1.00\(abqy.5\)c0 |
| zyxel nebula_fwa510_firmware | v < 1.15\(acgd.3\)c0 | 1.15\(acgd.3\)c0 |
| zyxel nebula_fwa710_firmware | v < 1.15\(acgc.3\)c0 | 1.15\(acgc.3\)c0 |
| zyxel nebula_nr7101_firmware | v < 1.15\(accc.3\)c0 | 1.15\(accc.3\)c0 |
| zyxel nr5103_firmware | v < 4.19\(abyc.3\)c0 | 4.19\(abyc.3\)c0 |
| zyxel nr5103e_firmware | No range specified | — |
| zyxel nr7102_firmware | v < 1.00\(abyd.2\)c0 | 1.00\(abyd.2\)c0 |
| zyxel nr7103_firmware | v < 1.00\(accz.1\)c0 | 1.00\(accz.1\)c0 |
| zyxel ep240p_firmware | No range specified | — |
| zyxel pm7320-b0_firmware | No range specified | — |
| zyxel pmg5317-t20b_firmware | No range specified | — |
| zyxel pmg5617ga_firmware | No range specified | — |
| zyxel pmg5622ga_firmware | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.