How severe is CVE-2026-27767?

CVE-2026-27767 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-27767 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27767?

CVE-2026-27767 affects Swtchenergy Swtchenergy.com. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27767?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-27767 have an EU (EUVD) identifier?

Yes. CVE-2026-27767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8965.

When was CVE-2026-27767 published?

CVE-2026-27767 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-27767

CVE-2026-27767 is a critical-severity vulnerability in Swtchenergy Swtchenergy.com with a CVSS 3.x base score of 9.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
CVSS v4: 9.3
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8965
Weakness: CWE-306
Affected product: Swtchenergy Swtchenergy.com
Published: 2026-02-27
Last modified: 2026-06-17

Description

WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.

Frequently asked questions

What is CVE-2026-27767?: WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
How severe is CVE-2026-27767?: CVE-2026-27767 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-27767 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27767?: CVE-2026-27767 affects Swtchenergy Swtchenergy.com. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27767?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-27767 have an EU (EUVD) identifier?: Yes. CVE-2026-27767 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8965.
When was CVE-2026-27767 published?: CVE-2026-27767 was published on 2026-02-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:swtchenergy:swtchenergy.com:*:*:*:*:*:*:*:*

More vulnerabilities in Swtchenergy Swtchenergy.com

CVE-2026-25113 — High (CVSS 7.5): The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This…
CVE-2026-25778 — High (CVSS 7.3): The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints…
CVE-2026-27773 — Medium (CVSS 6.5): Charging station authentication identifiers are publicly accessible via web-based mapping platforms.

All CVEs affecting Swtchenergy Swtchenergy.com →

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