Code execution via unchecked SLAC payload length
Published Mar 26, 2026 · Updated Mar 26, 2026
Stack-based buffer overflow in EVerest Core before 2026.02.0 allows physically proximate attackers to execute code via SLAC frames. HomeplugMessage::setup_payload relies on an assertion to bound len, so release builds copy oversized network payloads into an approximately 1,497-byte stack buffer. Access to the charger's SLAC link is required; successful exploitation corrupts adjacent stack state and executes code in the charging process.
Summary
What happened
Stack-based buffer overflow in EVerest Core before 2026.02.0 allows physically proximate attackers to execute code via SLAC frames. HomeplugMessage::setup_payload relies on an assertion to bound len, so release builds copy oversized network payloads into an approximately 1,497-byte stack buffer. Access to the charger's SLAC link is required; successful exploitation corrupts adjacent stack state and executes code in the charging process.
The record
- CVE
- CVE-2026-22790
- Published
- Mar 26, 2026
- Updated
- Mar 26, 2026
- Vendor
- EVerest
- Product
- EVerest Core
- Classifications
- CWE-121, T1190
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 26, 2026CVE publishedPublication date reported by the CVE source.
- Mar 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2026.02.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- HomeplugMessage setup_payload ASan reproducerproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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