Critical severity · published Sep 14, 2026
CVE-2026-78299
In Eclipse Embedded CDT versions 6.0 to 6.7 if the CMSIS-Pack archive extracts a compromised CMSIS pack the archive extraction can extract files to locations outside of the pack,…
9.1
CVSS
0.5%
EPSS
No
On KEV
Description
In Eclipse Embedded CDT versions 6.0 to 6.7 if the CMSIS-Pack archive extracts a compromised CMSIS pack the archive extraction can extract files to locations outside of the pack, allowing writing of arbitrary files to other locations on disk.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EE
Eclipse Embedded CDT (C/C++ Development Tools) · Eclipse Foundation
6.0.0 before 6.8.0 · source: vendor
Affected product
EE
Eclipse Embedded CDT (C/C++ Development Tools)
Eclipse Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78299
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78299
github.com
https://github.com/eclipse-embed-cdt/eclipse-plugins/security/advisories/GHSA-qch4-8rmp-mjx3
gitlab.eclipse.org
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/747