CVE-2026-21005
Title: Path traversal allows arbitrary file overwrite by adjacent attackers
Arbitrary File Access
Proof Of Concept
PoC Available for CVE-2026-21005
CWE Category
NVD-CWE-noinfo
Published Date
Mar 16, 2026
Modified Date
Mar 31, 2026
Exploit Status
Available
Score
7.1
CVSS v4.0
Exploit Probability (EPSS)
0.23%
Vulnerability Summary
CVE-2026-21005: Path traversal in Smart Switch prior to version 3.7.69.15 allows adjacent attackers to overwrite arbitrary files with Smart Switch privilege.
Impacted Vendors
Reference Links
CVSS v4.0
Source Entity
[email protected]
Severity
HIGH
7.1
Attack Vector
ADJACENT
Complexity
LOW
Privileges
N/A
Interaction
PASSIVE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1
Source Entity
[email protected]
Severity
MEDIUM
6.5
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2026-21005 Exploits & PoCs (Proof Of Concept)
GitHub
https://github.com/George0Papasotiriou/CVE-2026-21005-Docker-Registry-V2-Schema-1-Image-Poisoning
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
Attack Vector Matrix
Access Vector
ADJACENT
Complexity
LOW
Privileges
N/A
Interaction
PASSIVE
CVSS Vector String
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Affected Stack
No specific products linked.