VulnerabilityModified
CVE-2021-35031
A vulnerability in the TFTP client of Zyxel GS1900 series firmware, XGS1210 series firmware, and XGS1250 series firmware, which could allow an authenticated LAN user to execute arbitrary OS commands via the GUI of the vulnerable device.
HIGH 8.0EPSS 0.46%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the TFTP client of Zyxel GS1900 series firmware, XGS1210 series firmware, and XGS1250 series firmware, which could allow an authenticated LAN user to execute arbitrary OS commands via the GUI of the vulnerable device.
- CVSS 3.1
- 8.0 HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- zyxel/gs1900-8 firmware · zyxel/gs1900-8hp firmware · zyxel/gs1900-10hp firmware · zyxel/gs1900-16 firmware · zyxel/gs1900-24e firmware · zyxel/gs1900-24ep firmware · zyxel/gs1900-24 firmware · zyxel/gs1900-24hp firmware · zyxel/gs1900-24hpv2 firmware · zyxel/gs1900-48 firmware · zyxel/gs1900-48hp firmware · zyxel/gs1900-48hpv2 firmware · zyxel/xgs1210-12 firmware · zyxel/xgs1250-12 firmware
- Source
- security@zyxel.com.tw
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.