Vulnerability · Published Mar 26, 2026 · Assigned by GitHub_M

CVE-2026-27828EVerest: ISO15118 session_setup use-after-free can crash EVSE process

Medium 5.5

In plain English

A medium-severity use-after-free in everest-core from EVerest. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 4.0)5.5Medium

Exploit odds (30 days)0.3%top 77.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
EVerest	everest-core	< 2026.02.0

Weakness: CWE-416 · Vector: 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

References

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