Vulnpedia
← All CVEs

CVE-2026-12014

HIGH 8.3

Published 2026-06-11 · Last modified 2026-06-12

Use after free in Cast in Google Chrome prior to 149.0.7827.115 allowed an attacker on the local network segment to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: High)

ELEVATED IMPACT

Severe if exploited (CVSS 8.3), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 7th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

8.3CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Must sit on the same / adjacent network
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-12014/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-12014/poc.json

Affected

Vendors Google Apple Linux Microsoft

Products Chrome Macos Linux Kernel Windows

Weakness (CWE)

  • CWE-416: Use after free

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Known Affected Software Configurations

VendorProductVersion range
GoogleChrome< 149.0.7827.115

All CVSS metrics

  • HIGH 8.3 v3.1 · ADP Primary
    CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • HIGH 8.3 v3.1 · NVD Secondary
    CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS