CVE-2023-35136

published 2023-11-28

CVE-2023-35136: An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware…

Priority P4 26 medium 5.5 CVSS 3.1

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

An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to access configuration files on an affected device.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
zyxel	atp_series_firmware	—	—
zyxel	usg20_vpn_series_firmware	—	—
zyxel	usg_flex_50_series_firmware	—	—
zyxel	usg_flex_series_firmware	—	—
zyxel	vpn_series_firmware	—	—
zyxel	zld	4.16 – 5.37	—
zyxel	zld	4.30 – 5.37	—
zyxel	zld	4.32 – 5.37	—
zyxel	zld	4.50 – 5.37	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-20