Description
The OCPP implementation in libocpp before 0.26.2 allows a denial of service (EVerest crash) via JSON input larger than 255 characters, because a CiString<255> object is created with StringTooLarge set to Throw.
References (5)
Core 5
Core References
Various Sources
https://github.com/EVerest/libocpp/compare/v0.26.1...v0.26.2
Issue Tracking
https://github.com/EVerest/everest-core/issues/1152
Issue Tracking
https://github.com/EVerest/libocpp/pull/1052
Scores
CVSS v3
3.1
EPSS
0.0002
EPSS Percentile
5.3%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-392
Status
published
Products (1)
EVerest/libocpp
< 0.26.2
Published
Sep 15, 2025
Tracked Since
Feb 18, 2026