CVE-2022-1778VulnerabilityPublished 14 Sep 2022Updated 4 Jun 2025

CVE-2022-1778: Hitachi Energy MicroSCADA X SYS600 · Memory Buffer Overflow

Affects Hitachi Energy MicroSCADA X SYS600Source CVE Database V5

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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: None
Integrity: None
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Sep 2022
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Mavenhitachienergy/microscada_x_sys600`pkg:maven/hitachienergy/microscada_x_sys600`Other threats	Affected =10 =10.1 =10.1.1 =10.2 =10.2.1 =10.3 =10.3.1	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Immediate mitigation should include applying any available patches or updates provided by Hitachi Energy for MicroSCADA X SYS600. Organizations should contact Hitachi Energy support to obtain official patches or workarounds. 2. Restrict network access to the MicroSCADA X SYS600 management interfaces to trusted administrative networks only, using network segmentation and firewalls to limit exposure to untrusted networks or the internet. 3. Implement strict access controls and monitoring on administrator accounts and the configuration files to detect and prevent unauthorized modifications or access attempts. 4. Employ intrusion detection and prevention systems (IDS/IPS) to monitor for anomalous activity or attempts to exploit buffer overflow conditions targeting SYS600. 5. Conduct thorough security audits and vulnerability assessments on the MicroSCADA X SYS600 deployment to identify any misconfigurations or exposure. 6. Develop and test incident response plans that include scenarios for denial-of-service conditions affecting SCADA systems to ensure rapid recovery and continuity of operations. 7. Consider deploying application-layer protections such as input validation proxies or runtime application self-protection (RASP) if supported by the environment to mitigate malformed input leading to buffer overflows. 8. Maintain up-to-date backups and system snapshots to enable quick restoration if the system fails to start due to exploitation. 9. Engage with Hitachi Energy and industry information sharing groups to stay informed about emerging exploits or patches related to this vulnerability.

Description

Improper Input Validation vulnerability in Hitachi Energy MicroSCADA X SYS600 while reading a specific configuration file causes a buffer-overflow that causes a failure to start the SYS600. The configuration file can only be accessed by an administrator access. This issue affects: Hitachi Energy MicroSCADA X SYS600 version 10 to version 10.3.1.cpe:2.3:a:hitachienergy:microscada_x_sys600:10:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.1.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3.1:*:*:*:*:*:*:*

Impact

For European organizations, especially those operating critical energy infrastructure, this vulnerability poses a significant risk to operational continuity. MicroSCADA X SYS600 is used in supervisory control and data acquisition systems that manage electrical grids and other energy assets. A denial-of-service condition caused by this buffer overflow could prevent the system from starting, leading to loss of visibility and control over critical energy processes. This can result in operational disruptions, delayed incident response, and potential cascading failures in energy distribution. Given the increasing focus on energy security and grid resilience in Europe, such disruptions could have wide-reaching economic and societal impacts. Furthermore, the fact that the vulnerability can be exploited remotely without authentication increases the threat level, as attackers could potentially trigger outages without needing insider access. Although the configuration file is restricted to administrators, the CVSS vector indicates no privileges are required, suggesting that the vulnerability might be exploitable remotely via network vectors that do not require prior authentication, possibly due to how the configuration file is processed or accessed by the system. This discrepancy should be carefully investigated by defenders. The lack of impact on confidentiality and integrity means data theft or manipulation is not the primary concern, but availability is critical in industrial control systems. European energy operators must prioritize addressing this vulnerability to maintain grid stability and comply with regulatory requirements on critical infrastructure protection.

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer (opens in a new tab)
Class weaknessLikelihood of exploit: High
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Buffer Overflow via Environment Variables (opens in a new tab)
Overflow Buffers (opens in a new tab)
Client-side Injection-induced Buffer Overflow (opens in a new tab)
Filter Failure through Buffer Overflow (opens in a new tab)
MIME Conversion (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Jul 2025, 02:25 UTC

WeaknessesCWE-119

Technical details

References

Community reviews

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