7.5

CVE-2023-6711: hitachi energy rtu500 series cmu firmware Classic Buffer Overflow

CVSS: 7.5v3.1HighModified
Published 19-12-2023Last modified 25-09-2024
Open JSON

Vulnerability summary

CVE-2023-6711 is a high (CVSS 7.5) Classic Buffer Overflow vulnerability in hitachi energy rtu500 series cmu firmware. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51.3% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.67%
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. 19-12-2023
    PublishedVulnerability first disclosed.
  2. 25-09-2024
    Last modifiedVulnerability information updated.

Description

Vulnerability exists in SCI IEC 60870-5-104 and HCI IEC 60870-5-104 that affects the RTU500 series product versions listed below. Specially crafted messages sent to the mentioned components are not validated properly and can result in buffer overflow and as final consequence to a reboot of an RTU500 CMU.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.67%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.67% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.67%

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 series cmu firmware≥ 12.0.1, ≤ 12.0.14 | ≥ 12.2.1, ≤ 12.2.11 | ≥ 12.4.1, ≤ 12.4.11 | ≥ 12.6.1, ≤ 12.6.9 | ≥ 12.7.1, ≤ 12.7.6 | ≥ 13.2.1, ≤ 13.2.6 | ≥ 13.4.1, ≤ 13.4.3 | 13.5.1
Hitachienergy1 product
  • rtu500_firmware≥ 12.0.1.0, < 12.0.15.0 | ≥ 12.2.1.0, < 12.2.12.0 | ≥ 12.4.1.0, < 12.4.12.0 | ≥ 12.6.1.0, < 12.6.10.0 | ≥ 12.7.1.0, < 12.7.7.0 | ≥ 13.2.1.0, < 13.2.7.0 | ≥ 13.4.1.0, < 13.4.4.0 | 13.5.1.0

2 vendors · 2 products

References

1 links