CVE-2023-26257Public exploitNetwork attack vector

Control-utility memory exhaustion via leaked ECU configuration

Published Feb 27, 2023 · Updated Aug 2, 2024

Memory leak in COVESA DLT Daemon 2.18.8 and earlier allows attackers to exhaust control-utility memory during initialization. The set_ecuid function calls dlt_parse_config_param to allocate ecuid_conf, copies its value into local_ecuid, and returns without freeing the allocation. The path is reached when dlt-logstorage-ctrl or dlt-passive-node-ctrl initializes control communication; public sources do not establish daemon-wide failure.

CVSS severity7.5
High
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in COVESA DLT Daemon 2.18.8 and earlier allows attackers to exhaust control-utility memory during initialization. The set_ecuid function calls dlt_parse_config_param to allocate ecuid_conf, copies its value into local_ecuid, and returns without freeing the allocation. The path is reached when dlt-logstorage-ctrl or dlt-passive-node-ctrl initializes control communication; public sources do not establish daemon-wide failure.

The record

CVE
CVE-2023-26257
Published
Feb 27, 2023
Updated
Aug 2, 2024
Vendor
COVESA
Product
DLT Daemon
Classifications
CWE-401, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.18.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

COVESA · DLT Daemonversion=0 <=2.18.8

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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