7.5

CVE-2022-4608: hitachi energy rtu500 series Out-of-bounds Write

CVSS: 7.5v3.1HighModified
Published 26-07-2023Last modified 05-03-2025
Open JSON

Vulnerability summary

CVE-2022-4608 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in hitachi energy rtu500 series. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-07-2023
    PublishedVulnerability first disclosed.
  2. 05-03-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability exists in HCI IEC 60870-5-104 function included in certain versions of the RTU500 series product. The vulnerability can only be exploited, if the HCI 60870-5-104 is configured with support for IEC 62351-3. After session resumption interval is expired an RTU500 initiated update of session parameters causes an unexpected restart due to a stack overflow.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.71% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Hitachi energy1 product
  • rtu500 seriesRTU500 series CMU Firmware version 13.3.1 | RTU500 series CMU Firmware version 13.3.2
Hitachienergy1 product

2 vendors · 2 products

References

2 links