EVerest everest-core 2025.9.0/2025.10.0/2025.12.0 setup_payload stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in EVerest everest-core and classified as critical. This issue affects the function HomeplugMessage::setup_payload. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2026-22790. The attack needs to be approached within the local network. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in EVerest everest-core. It has been classified as critical. This affects the function HomeplugMessage::setup_payload. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-22790 since 01/09/2026. The exploitability is told to be easy. The attack needs to be done within the local network. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2026.02.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: everest-core 2026.02.0

Timelineinfo

01/09/2026 CVE reserved
03/26/2026 +76 days Advisory disclosed
03/26/2026 +0 days VulDB entry created
03/26/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-wh8w-7cfc-gq7m
Status: Confirmed

CVE: CVE-2026-22790 (🔒)
GCVE (CVE): GCVE-0-2026-22790
GCVE (VulDB): GCVE-100-353643

Entryinfo

Created: 03/26/2026 16:50
Changes: 03/26/2026 16:50 (31), 03/26/2026 16:51 (34)
Complete: 🔍
Cache ID: 216::103

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