CVE-2021-35031

published 2021-12-28

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…

Priority P3 44 high 8 CVSS 3.1

AV A AC L PR L UI N S U C H I H A H

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

17 ranges

Vendor	Product	Version range	Fixed in
zyxel	gs1900-10hp_firmware	< 2.70\(aazi.0\)-20211208	2.70\(aazi.0\)-20211208
zyxel	gs1900-16_firmware	< 2.70\(aahj.0\)-20211208	2.70\(aahj.0\)-20211208
zyxel	gs1900-24_firmware	< 2.70\(aahl.0\)-20211208	2.70\(aahl.0\)-20211208
zyxel	gs1900-24e_firmware	< 2.70\(aahk.0\)-20211208	2.70\(aahk.0\)-20211208
zyxel	gs1900-24ep_firmware	< 2.70\(abto.0\)-20211208	2.70\(abto.0\)-20211208
zyxel	gs1900-24hp_firmware	< 2.70\(aahm.0\)-20211208	2.70\(aahm.0\)-20211208
zyxel	gs1900-24hpv2_firmware	< 2.70\(aatp.0\)-20211208	2.70\(aatp.0\)-20211208
zyxel	gs1900-48_firmware	< 2.70\(aahn.0\)-20211208	2.70\(aahn.0\)-20211208
zyxel	gs1900-48hp_firmware	< 2.70\(aaho.0\)-20211208	2.70\(aaho.0\)-20211208
zyxel	gs1900-48hpv2_firmware	< 2.70\(abtq.0\)-20211208	2.70\(abtq.0\)-20211208
zyxel	gs1900-8_firmware	< 2.70\(aahh.0\)-20211208	2.70\(aahh.0\)-20211208
zyxel	gs1900-8hp_firmware	< 2.70\(aahi.0\)-20211208	2.70\(aahi.0\)-20211208
zyxel	gs1900_series_firmware	—	—
zyxel	xgs1210-12_firmware	< 1.00\(abty.5\)c0	1.00\(abty.5\)c0
zyxel	xgs1210_series_firmware	—	—
zyxel	xgs1250-12_firmware	< 1.00\(abwe.1\)c0	1.00\(abwe.1\)c0
zyxel	xgs1250_series_firmware	—	—

CVSS provenance

nvd v3.1 8.0 HIGH CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.7 HIGH AV:A/AC:L/Au:S/C:C/I:C/A:C

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CWE-78