CVE-2021-35035

MEDIUM
6.5
CVSS Score
Published: December 29, 2021 at 12:45 PM UTC
Updated: June 17, 2026 at 03:57 AM UTC
2 products affected across 1 vendorNBG6604 firmwareNbg6604

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%

Description

A cleartext storage of sensitive information vulnerability in the Zyxel NBG6604 firmware could allow a remote, authenticated attacker to obtain sensitive information from the configuration file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.00(abir.9)c01.00(ABIR.8)C0
Affected range stops below 1.00(abir.9)c0, so it looks safe — our inference, not a vendor statement
zyxel-nbg6604 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

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