CVE-2026-27828 | EVerest everest-core 2025.9.0/2025.10.0/2025.12.0 handle_session_setup use after free (GHSA-5g3v-qc79-qqwr / EUVD-2026-16228)

VDB-353691 · CVE-2026-27828 · GHSA-5G3V-QC79-QQWR EVEREST EVEREST-CORE 2025.9.0/2025.10.0/2025.12.0 HANDLE_SESSION_SETUP USE AFTER FREE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 3.09+ Summaryinfo A vulnerability identified as critical has been detected in EVerest everest-core. This affects the function ISO15118_chargerImpl::handle_session_setup. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2026-27828. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component. Detailsinfo A vulnerability classified as critical has been found in EVerest everest-core. This affects the function ISO15118_chargerImpl::handle_session_setup. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is: EVerest is an EV charging software stack. Prior to version 2026.02.0, ISO15118_chargerImpl::handle_session_setup uses v2g_ctx after it has been freed when ISO15118 initialization fails (e.g., no IPv6 link-local address). The EVSE process can be crashed remotely by an attacker with MQTT access who issues a session_setup command while v2g_ctx has been released. Version 2026.02.0 contains a patch. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-27828 since 02/24/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. Upgrading to version 2026.02.0 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-16228). Productinfo Vendor EVerest Name everest-core Version 2025.9.0 2025.10.0 2025.12.0 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.5 VulDB Meta Temp Score: 5.3 VulDB Base Score: 5.5 VulDB Temp Score: 5.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Use after free CWE: CWE-416 / CWE-119 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: everest-core 2026.02.0 Timelineinfo 02/24/2026 CVE reserved 03/26/2026 +30 days Advisory disclosed 03/26/2026 +0 days VulDB entry created 03/26/2026 +0 days VulDB entry last update Sourcesinfo Advisory: GHSA-5g3v-qc79-qqwr Status: Confirmed CVE: CVE-2026-27828 (🔒) GCVE (CVE): GCVE-0-2026-27828 GCVE (VulDB): GCVE-100-353691 EUVD: 🔒 Entryinfo Created: 03/26/2026 19:04 Updated: 03/26/2026 19:38 Changes: 03/26/2026 19:04 (68), 03/26/2026 19:38 (1) Complete: 🔍 Cache ID: 99:74C:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸