CVE-2026-27828

EVerest: ISO15118 session_setup use-after-free can crash EVSE process

State: Published
Severity: 5.5 Medium
Published: Mar 26, 2026
Updated: Mar 27, 2026
Reserved: Feb 24, 2026

Description

EVerest is an EV charging software stack. Prior to version 2026.02.0, ISO15118_chargerImpl::handle_session_setup uses v2g_ctx after it has been freed when ISO15118 initialization fails (e.g., no IPv6 link-local address). The EVSE process can be crashed remotely by an attacker with MQTT access who issues a session_setup command while v2g_ctx has been released. Version 2026.02.0 contains a patch.

Scores

CVSS	Score	Vector	Source
4.0	5.5 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
everest-coreEVerest	< 2026.02.0Affected

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-5g3v-qc79-qqwr

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