CISA Advisory: XCharge C6 EV Charger Critical Vulnerabilities
CISA has published an ICS advisory disclosing three critical/high-severity vulnerabilities in the XCharge C6 EV charging controller, including a firmware integrity bypass (CVSS 9.8), stack-based buffer overflow, and insecure default credential flaw. The vulnerabilities affect chargers deployed worldwide and could allow remote or physical attackers to gain administrator rights or execute arbitrary code. XCharge has confirmed patches have been deployed, and no known public exploitation has been reported at this time.
AI-generated from linked source reports. See our correction policy.
Impact verdict
Low impact. No concrete London Market loss pathway is evidenced: no named insured asset damage, no confirmed exploitation, no business interruption, no claims or reserving activity indicated. Patches have already been deployed by the vendor. The advisory is a routine ICS vulnerability disclosure with theoretical relevance to cyber underwriters monitoring EV/transportation infrastructure exposure, but falls below the threshold for MEDIUM without evidence of active exploitation, insured loss, or named commercial asset impact.
View assessment methodologyHow we grade what we know -- Known · Reported · Uncertain. Methodology →
Intelligence ledger
Each line expands in place to its underlying sourced claim.
Known6 lines
Three CVEs disclosed: CVE-2026-9037 (CVSS 9.8 Critical), CVE-2026-9038 (CVSS 7.6 High), CVE-2026-9039 (CVSS 7.6 High)▾
Vulnerabilities affect XCharge C6 charging controllers running firmware versions prior to May 22, 2026▾
XCharge has confirmed patches have been deployed to all affected chargers▾
Affected critical infrastructure sector: Transportation Systems▾
No known public exploitation reported to CISA at time of publication▾
Devices deployed worldwide; company headquartered in the United States▾
Reported4 lines
Vulnerabilities were reported by Lionel R. Saposnik of SaiFlow▾
CVE-2026-9037 allows remote unauthenticated firmware replacement via management interface impersonation▾
CVE-2026-9038 requires physical access to the charging interface to exploit▾
CVE-2026-9039 allows physical attacker to gain full administrative access using default credentials▾
Uncertain4 lines
Total number of XCharge C6 units deployed globally is not specified▾
Whether any exploitation occurred prior to patch deployment is unknown▾
Downstream impact on EV fleet operators, charging networks, or grid-connected infrastructure is not assessed▾
Whether insured commercial fleets or infrastructure operators are exposed is unclear▾
Geographic Zone Matches
3 active matches
- TRIA Certified AreasRule-basedConfidence 100%
- Caribbean Hurricane ZoneRule-basedConfidence 100%
- Pacific Ring of FireRule-basedConfidence 100%
Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.
Affected countries
Timeline
Lifecycle changed
monitoring → closed
Event Closed
auto_closed_monitoring_timeout
Status changed to monitoring
Auto-transitioned: no updates for 6 hours
active → monitoring
Status changed to active
remediation: existing authoritative signal
signal → active
Initial Detection
CISA has published an ICS advisory disclosing three critical/high-severity vulnerabilities in the XCharge C6 EV charging controller, including a firmware integrity bypass (CVSS 9.8), stack-based buffer overflow, and insecure default credential flaw. The vulnerabilities affect chargers deployed worldwide and could allow remote or physical attackers to gain administrator rights or execute arbitrary code. XCharge has confirmed patches have been deployed, and no known public exploitation has been reported at this time.
Successful exploitation of these vulnerabilities could allow an attacker to gain administrator rights or execute code on the affected device... A firmware update mechanism in the affected charging controller fails to validate the authenticity of firmware packages delivered through the device's management interface. Because cryptographic signatures are not verified, an attacker with the ability to interfere with or impersonate the management channel could cause the device to install an unautho...
Source: CISA Advisories (Official Advisory) · View source
Lloyd's classifications
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