8.4

CVE-2026-22593: everest everest-core Off-by-one Error

CVSS: 8.4v3.1HighAnalyzed
Published 26-03-2026Last modified 28-03-2026
Open JSON

Vulnerability summary

CVE-2026-22593 is a high (CVSS 8.4) Off-by-one Error vulnerability in everest everest-core. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
44/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 28-03-2026
    Last modifiedVulnerability information updated.

Description

EVerest is an EV charging software stack. Prior to version 2026.02.0, an off-by-one check in IsoMux certificate filename handling causes a stack-based buffer overflow when a filename length equals `MAX_FILE_NAME_LENGTH` (100). A crafted filename in the certificate directory can overflow `file_names[idx]`, corrupting stack state and enabling potential code execution. Version 2026.02.0 contains a patch.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Everest

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Everest1 product
Linuxfoundation1 product

2 vendors · 2 products

References

1 links