HOMEVULNERABILITIESCVE-2026-2460
HIGH

CVE-2026-2460

CWE-267Published: February 24, 2026· Updated: Feb 26, 2026

8.1
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.4th

Official Description

A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by using the DAC protocol that the user is not authorized to do so.

NVD Source

Technical Analysis

CVE-2026-2460 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

hitachienergy2 products
reb500 firmwarereb500
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

News & Research Mentioning CVE-2026-2460

Hitachi Energy Relion REB500 Product
CISA Alerts· Mar 3, 2026

View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect the Relion REB500 product versions listed in this document. Authenticated users with certain roles can exploit the vulnerabilities to access and modify the directory contents they are not authorized to do so. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy Relion REB500 Product are affected: Relion REB500 vers:Relion_REB500/<=8.3.3.0 (CVE-2026-2459, CVE-2026-2460) CVSS Vendor Equipment Vulnerabilities v3 6.8 Hitachi Energy Hitachi Energy Relion REB500 Product Privilege Defined With Unsafe Actions Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Compa [xlite_meta score:73 src:CISA Alerts xlite_fp:01f9ac337cc7afeaccdb785798646847715b3ec06a0e0ff9c6ccdd40afcc708b]

All References (1)

Quick Facts

CVE IDCVE-2026-2460
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-267
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedFeb 24, 2026

Known Threat Actors

wa
financial
thor
financial
aware
financial
core
financial
unsafe
financial

Related CVEs (CWE-267)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-2460 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.