CVE-2026-23955
CVE-2026-23955 is a medium-severity vulnerability in Linuxfoundation Everest with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1046.
Key facts
- Severity: Medium (CVSS 3.x base score 4.2)
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-3780
- Weakness: CWE-1046
- Affected product: Linuxfoundation Everest
- Published:
- Last modified:
Description
EVerest is an EV charging software stack. Prior to version 2025.9.0, in several places, integer values are concatenated to literal strings when throwing errors. This results in pointers arithmetic instead of printing the integer value as expected, like most of interpreted languages. This can be used by malicious operator to read unintended memory regions, including the heap and the stack. Version 2025.9.0 fixes the issue.
Frequently asked questions
- What is CVE-2026-23955?
- EVerest is an EV charging software stack. Prior to version 2025.9.0, in several places, integer values are concatenated to literal strings when throwing errors. This results in pointers arithmetic instead of printing the integer value as expected, like most of interpreted languages. This can be used by malicious operator to read unintended memory regions, including the heap and the stack. Version 2025.9.0 fixes the issue.
- How severe is CVE-2026-23955?
- CVE-2026-23955 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-23955 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-23955?
- CVE-2026-23955 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-23955?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-23955 have an EU (EUVD) identifier?
- Yes. CVE-2026-23955 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3780.
- When was CVE-2026-23955 published?
- CVE-2026-23955 was published on 2026-01-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*
More vulnerabilities in Linuxfoundation Everest
- CVE-2026-27816 — Critical (CVSS 9.1): EVerest is an EV charging software stack. Prior to versions to 2026.02.0,…
- CVE-2026-27815 — Critical (CVSS 9.1): EVerest is an EV charging software stack. Prior to versions to 2026.02.0, ISO15118_chargerImpl::handle_session_setup…
- CVE-2026-22790 — High (CVSS 8.8): EVerest is an EV charging software stack. Prior to version 2026.02.0, `HomeplugMessage::setup_payload` trusts `len`…
- CVE-2026-23995 — High (CVSS 8.4): EVerest is an EV charging software stack. Prior to version 2026.02.0, stack-based buffer overflow in CAN interface…
- CVE-2026-22593 — High (CVSS 8.4): EVerest is an EV charging software stack. Prior to version 2026.02.0, an off-by-one check in IsoMux certificate…
- CVE-2025-68137 — High (CVSS 8.3): EVerest is an EV charging software stack. Prior to version 2025.10.0, an integer overflow occurring in…
All CVEs affecting Linuxfoundation Everest →
Other CWE-1046 vulnerabilities
- CVE-2026-42499 — High (CVSS 7.5): Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.