What is CVE-2026-26073?

CVE-2026-26073 is a medium-severity vulnerability in Everest Everest-Core, classified under Heap-based Buffer Overflow. CVSS score: 5.9/10. Published 2026-03-26.

How severe is CVE-2026-26073?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Buffer overflow in Everest Everest-Core

CVE-2026-26073

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to possible `std::queue`/`std::deque` corruption. The trigger is powermeter public key update and EV session/error events (while OCPP not started). This results in a TSAN data race report and an ASAN/UBSAN misaligned address runtime error being observed. Version 2026.02.0 contains a patch.

Vulnerability class: Buffer Overflow

Published 2026-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (28.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Everest Everest-Core — versions < 2026.02.0
Linuxfoundation Everest

Weakness classification (CWE)

References

github.com/EVerest/EVerest/security/advisories/GHSA-jf36-f4f9-7qc2 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-26073?: CVE-2026-26073 is a medium-severity vulnerability in Everest Everest-Core, classified under Heap-based Buffer Overflow. CVSS score: 5.9/10. Published 2026-03-26.
How severe is CVE-2026-26073?: Medium severity. CVSS v3 base score is 5.9 out of 10.