LOW
CVE-2026-45182
CWE-441Published: May 9, 2026· Updated: May 13, 2026
2.2
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.2th
Official 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.
Technical Analysis
CVE-2026-45182 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
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NVD Detail
Official NIST entry
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All References (4)
Quick Facts
CVE IDCVE-2026-45182
CVSS Score2.2 / 10
SeverityLOW
WeaknessCWE-441
CISA KEVNo
EPSS (30d)0.01%
PublishedMay 9, 2026
Related CVEs (CWE-441)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-45182 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.