Vulnerability · Published Jan 21, 2026 · Assigned by GitHub_M

CVE-2025-68137EVerest's Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loop

High 8.4

In plain English

A high-severity buffer overflow in everest-core from EVerest. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities).

Severity (CVSS 3.1)8.4High

Exploit odds (30 days)1.3%top 29.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

EVerest is an EV charging software stack. Prior to version 2025.10.0, an integer overflow occurring in `SdpPacket::parse_header()` allows the current buffer length to be set to 7 after a complete header of size 8 has been read. The remaining length to read is computed using the current length subtracted by the header length which results in a negative value. This value is then interpreted as `SIZE_MAX` (or slightly less) because the expected type of the argument is `size_t`. Depending on whether the server is plain TCP or TLS, this leads to either an infinite loop or a stack buffer overflow. Version 2025.10.0 fixes the issue.

Affected products (as reported)

Vendor	Product	Versions
EVerest	everest-core	< 2025.10.0

Weakness: CWE-120, CWE-835 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

References

https://github.com/EVerest/everest-core/security/advisories/GHSA-7qq4-q9r8-wc7w x_refsource_CONFIRM