CVE-2021-27935

HIGH
7.5
CVSS Score
Published: March 3, 2021 at 07:37 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
1 product affected across 1 vendorAdguardhome

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Severity
HIGH7.5
Exploit prediction
EPSS 5%

Description

An issue was discovered in AdGuard before 0.105.2. An attacker able to get the user's cookie is able to bruteforce their password offline, because the hash of the password is stored in the cookie.

Affected

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

v < 0.105.2
Affected range stops below 0.105.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

References (1)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/AdguardTeam/AdGuardHome/issues/2470

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-522

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