CVEvulnerability

CVE-2021-35031

8.0 HIGH Published 2021-12-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-12-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
8.0 HIGH — CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.7 HIGH — AV:A/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-78

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.

Affected configurations

• zyxel gs1900-8 firmware (< 2.70\(aahh.0\)-20211208) • zyxel gs1900-8hp firmware (< 2.70\(aahi.0\)-20211208) • zyxel gs1900-10hp firmware (< 2.70\(aazi.0\)-20211208) • zyxel gs1900-16 firmware (< 2.70\(aahj.0\)-20211208) • zyxel gs1900-24e firmware (< 2.70\(aahk.0\)-20211208) • zyxel gs1900-24ep firmware (< 2.70\(abto.0\)-20211208) • zyxel gs1900-24 firmware (< 2.70\(aahl.0\)-20211208) • zyxel gs1900-24hp firmware (< 2.70\(aahm.0\)-20211208) • zyxel gs1900-24hpv2 firmware (< 2.70\(aatp.0\)-20211208) • zyxel gs1900-48 firmware (< 2.70\(aahn.0\)-20211208) • zyxel gs1900-48hp firmware (< 2.70\(aaho.0\)-20211208) • zyxel gs1900-48hpv2 firmware (< 2.70\(abtq.0\)-20211208) • zyxel xgs1210-12 firmware (< 1.00\(abty.5\)c0) • zyxel xgs1250-12 firmware (< 1.00\(abwe.1\)c0)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References