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CVE-2022-4608

25
FAUCET Score

CVE-2022-4608 is a high-severity vulnerability (CVSS 7.5) affecting specific versions of Hitachi Energy RTU500 series products when configured with HCI IEC 60870-5-104 and IEC 62351-3 support. It is a stack overflow that leads to an unexpected device restart after a session resumption interval expires and the RTU500 initiates a session parameter update. This vulnerability can be exploited remotely without authentication, resulting in a denial-of-service impact. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
13.3.1CPE matchmatch criteria
cpe:2.3:o:hitachienergy:rtu500_firmware:13.3.1:*:*:*:*:*:*:*
13.3.2CPE matchmatch criteria
cpe:2.3:o:hitachienergy:rtu500_firmware:13.3.2:*:*:*:*:*:*:*
13.3.3CPE matchmatch criteria
cpe:2.3:o:hitachienergy:rtu500_firmware:13.3.3:*:*:*:*:*:*:*
13.4.1CPE matchmatch criteria
cpe:2.3:o:hitachienergy:rtu500_firmware:13.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 26th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

search.abb.com / library/Download.aspx
publisher.hitachienergy.com / preview