CVE-2026-24912
Published: 06 March 2026
Summary
CVE-2026-24912 is a medium-severity Insufficient Session Expiration (CWE-613) vulnerability in Epower Epower.Ie. Its CVSS base score is 6.9 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 30.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-10 (Concurrent Session Control) and SC-23 (Session Authenticity).
Deeper analysis
CVE-2026-24912 affects the WebSocket backend in charging station management systems, where sessions are uniquely associated using charging station identifiers. However, the implementation permits multiple endpoints to connect with the same session identifier, resulting in predictable identifiers that enable session hijacking or shadowing. In this scenario, the most recent connection displaces the legitimate charging station, allowing it to receive backend commands intended for that station. The vulnerability, classified under CWE-613 (Insufficient Session Expiration), carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) and was published on 2026-03-06.
Network-accessible attackers require no privileges or user interaction to exploit this issue. By using a known or predictable session identifier, an unauthorized party can hijack a session, impersonate a legitimate charging station, and access commands or data meant for it, potentially enabling unauthorized authentication as other users. Alternatively, a malicious actor can cause a denial-of-service condition by overwhelming the backend with multiple valid session requests.
CISA has issued ICS Advisory ICSA-26-062-07 detailing the vulnerability, available at https://www.cisa.gov/news-events/ics-advisories/icsa-26-062-07, along with a corresponding CSAF JSON file at https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-062-07.json. Additional information is provided on the vendor support page at https://epower.ie/support/.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9940
Vulnerability details
The WebSocket backend uses charging station identifiers to uniquely associate sessions but allows multiple endpoints to connect using the same session identifier. This implementation results in predictable session identifiers and enables session hijacking or shadowing, where the most recent connection…
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displaces the legitimate charging station and receives backend commands intended for that station. This vulnerability may allow unauthorized users to authenticate as other users or enable a malicious actor to cause a denial-of-service condition by overwhelming the backend with valid session requests.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Public-facing WebSocket flaw directly enables exploitation via T1190; predictable/reusable session IDs allow takeover of remote service sessions (T1563) for impersonation and command access.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly limits concurrent use of the same charging-station session identifier, blocking the hijacking/shadowing described in the CVE.
Requires cryptographic binding and integrity protection of WebSocket sessions so that a predictable identifier alone cannot be used to impersonate a legitimate station.
Mandates non-predictable, unique identifiers for devices, eliminating the static/predictable charging-station session IDs that enable the attack.