CVE-2026-22593: CWE-193: Off-by-one Error in EVerest everest-core
CVE-2026-22593 is a high-severity vulnerability in the EVerest everest-core EV charging software stack. It is caused by an off-by-one error in the IsoMux certificate filename handling prior to version 2026. 02. 0. When a filename length equals the maximum allowed length (100), a stack-based buffer overflow occurs, potentially allowing corruption of stack state and code execution. This vulnerability is patched in version 2026. 02. 0.
AI Analysis
Technical Summary
EVerest everest-core versions before 2026.02.0 contain an off-by-one error (CWE-193) in the handling of certificate filenames within the IsoMux component. Specifically, if a filename is exactly the maximum allowed length (100 characters), the code incorrectly checks the length, causing a stack-based buffer overflow by overwriting the file_names array on the stack. This can corrupt stack memory and may lead to arbitrary code execution. The issue is resolved in version 2026.02.0 with an official patch.
Potential Impact
Successful exploitation of this vulnerability can lead to a stack-based buffer overflow, resulting in high impact including potential arbitrary code execution, complete confidentiality, integrity, and availability compromise of the affected system. The CVSS score of 8.4 reflects the high severity and the potential for significant damage if exploited locally.
Mitigation Recommendations
An official patch is available in EVerest everest-core version 2026.02.0. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is confirmed by the vendor advisory indicating the fix in version 2026.02.0.
CVE-2026-22593: CWE-193: Off-by-one Error in EVerest everest-core
Description
CVE-2026-22593 is a high-severity vulnerability in the EVerest everest-core EV charging software stack. It is caused by an off-by-one error in the IsoMux certificate filename handling prior to version 2026. 02. 0. When a filename length equals the maximum allowed length (100), a stack-based buffer overflow occurs, potentially allowing corruption of stack state and code execution. This vulnerability is patched in version 2026. 02. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
EVerest everest-core versions before 2026.02.0 contain an off-by-one error (CWE-193) in the handling of certificate filenames within the IsoMux component. Specifically, if a filename is exactly the maximum allowed length (100 characters), the code incorrectly checks the length, causing a stack-based buffer overflow by overwriting the file_names array on the stack. This can corrupt stack memory and may lead to arbitrary code execution. The issue is resolved in version 2026.02.0 with an official patch.
Potential Impact
Successful exploitation of this vulnerability can lead to a stack-based buffer overflow, resulting in high impact including potential arbitrary code execution, complete confidentiality, integrity, and availability compromise of the affected system. The CVSS score of 8.4 reflects the high severity and the potential for significant damage if exploited locally.
Mitigation Recommendations
An official patch is available in EVerest everest-core version 2026.02.0. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the vendor's patch. Patch status is confirmed by the vendor advisory indicating the fix in version 2026.02.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-01-07T21:50:39.532Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69c57a7f3c064ed76f9f9d2e
Added to database: 3/26/2026, 6:27:11 PM
Last enriched: 4/3/2026, 1:13:22 PM
Last updated: 5/10/2026, 1:35:19 PM
Views: 42
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