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CVE-2022-2502

23
FAUCET Score

CVE-2022-2502 is a critical vulnerability affecting Hitachi Energy RTU500 series products, specifically within the HCI IEC 60870-5-104 function when configured with IEC 62351-5 support and the 'Advanced security' license. This flaw, caused by missing input data validation leading to a buffer overflow, allows an unauthenticated attacker to remotely trigger a device reboot by sending a specially crafted message. With a CVSS score of 7.5 (High), this vulnerability presents a significant availability risk (A:H) due to its network-based attack vector (AV:N) and low attack complexity (AC:L). Currently, there is no evidence of active exploitation, nor is public exploit code available, and it has received minimal community discussion or media coverage.

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
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 24th 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