DNS Leak in Native System VPN in Google ChromeOS Dev Channel on ChromeOS 16002.23.0 allows network observers to expose plaintext DNS queries via failure to properly tunnel DNS traffic during VPN state transitions.
CVE-2025-1566
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-04-17. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 9.2%
- KEV
- Not listed
Published
April 16, 2025
Last Modified
July 8, 2025
References (2)
- 7f6e188d-c52a-4a19-8674-3c3fa7d1fc7fhttps://issues.chromium.org/issues/b/342802975
- 7f6e188d-c52a-4a19-8674-3c3fa7d1fc7fhttps://issuetracker.google.com/issues/342802975
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-05-30 07:12 UTCEG score recompute
- 2026-05-30 07:12 UTCGHSA enrichment
- 2026-05-29 13:44 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2025-1566?
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Dependency Blast Radius
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