CVE-2026-54413Network attack vector

UDS server crash via SecurityAccess length underflow

Published Jun 14, 2026 · Updated Jun 14, 2026

Out-of-bounds read in driftregion iso14229 0 through 0.9.0 allows remote attackers to crash UDS servers or read adjacent memory. Handle_0x27_SecurityAccess reads recv_buf[1] before validating recv_len, then underflows a one-byte request length to 65535 and passes it to application callbacks. The request must follow a valid 0x27 exchange, but the handler is reachable without authentication over CAN, OBD-II, ISO-TP, and DoIP.

CVSS severity8.2
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in driftregion iso14229 0 through 0.9.0 allows remote attackers to crash UDS servers or read adjacent memory. Handle_0x27_SecurityAccess reads recv_buf[1] before validating recv_len, then underflows a one-byte request length to 65535 and passes it to application callbacks. The request must follow a valid 0x27 exchange, but the handler is reachable without authentication over CAN, OBD-II, ISO-TP, and DoIP.

The record

CVE
CVE-2026-54413
Published
Jun 14, 2026
Updated
Jun 14, 2026
Vendor
driftregion
Product
iso14229
Classifications
CWE-125, CWE-191, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 14, 2026Record 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 <=0.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

driftregion · iso14229version=0 <=0.9.0

Published CVSS scores

7.8TuranSecCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
8.2TuranSecCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-191Integer Underflow (Wrap or Wraparound)
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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