CVE-2026-22790 json
EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload
published 2026-03-26 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-16197
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
EVerest is an EV charging software stack. Prior to version 2026.02.0, `HomeplugMessage::setup_payload` trusts `len` after an `assert`; in release builds the check is removed, so oversized SLAC payloads are `memcpy`'d into a ~1497-byte stack buffer, corrupting the stack and enabling remote code execution from network-provided frames. Version 2026.02.0 contains a patch.
Patch / fix
- linuxfoundation everest 2026.02.0
- linuxfoundation libocpp 2026.02.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- EVerest everest-core
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
github.com
/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m
exploit, vendor-advisory
Sources
- CVE List CVE-2026-22790
- NVD CVE-2026-22790
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.