CVE-2026-45182

LOW
2.2
CVSS Score
Published: May 9, 2026 at 10:07 PM UTC
Updated: July 24, 2026 at 08:20 PM UTC
1 product affected across 1 vendorGrapheneOS

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Severity
LOW2.2
Exploit prediction
EPSS 0.1%
SSVC
PoC

Description

GrapheneOS before 2026050400 allows attackers to discover the real IP address of a VPN user as a consequence of a registerQuicConnectionClosePayload optimization, because an application can let system_server transmit UDP traffic on its behalf. This occurs when the "Block connections without VPN" and "Always-on VPN" settings are enabled.

Affected

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

v < 2026050400
Affected range stops below 2026050400, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.2LOWmitre
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-441

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