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Fencer Vulns
high 7.5

CVE-2025-1566 json

DNS Leak in Native System VPN in Google ChromeOS Dev Channel on ChromeOS 16002.23.0 allows network observers to expose plaintext DNS querie…

published 2025-04-16 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-11529

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

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.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Google ChromeOS

Classification

Weakness
  • CWE-1319 Improper Protection against Electromagnetic Fault Injection (EM-FI)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.