CVE-2026-78299 Eclipse Embedded CDT - Unrestricted File Upload

Eclipse Embedded CDT 6.0 to 6.7 contains an unrestricted file write vulnerability caused by extraction of a compromised CMSIS pack archive, letting attackers write arbitrary files outside intended directories, exploit requires crafted CMSIS pack.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.54% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Unrestricted File Upload
Impact
File System Write, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version beyond 6.7.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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