CVE-2026-28701

Critical

Published: 26 June 2026

Published

26 June 2026

Modified

29 June 2026

KEV Added

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Patch

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CVSS Score v4 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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

EPSS Score 0.0084 53.4th percentile

Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-28701 is a critical-severity Path Traversal (CWE-22) vulnerability. Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique File and Directory Discovery (T1083); ranked in the top 46.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-39923

Vulnerability details

Various versions of Daktronics Controller Firmware could allow authenticated and unauthenticated remote users to escape the intended directory and enumerate arbitrary file system paths.

CWE(s): CWE-22

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1083 File and Directory Discovery Discovery

Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.

attack.mitre.org →

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Path traversal (CWE-22) in remote firmware directly enables arbitrary filesystem path enumeration (T1083) and is itself an instance of exploiting a public-facing application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0