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CVE-2026-102511— Apache PLC4X, Apache PLC4X, Apache PLC4X, Apache PLC4X: ADS discovery accepts spoofed responses and derives the connection target from them

Quick assessment

Affected
Apache Software Foundation Apache PLC4X
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache PLC4X 的 Go 实现（PLC4Go）中，ADS 发现机制存在“通信通道来源验证不当”的漏洞。能够向执行发现的 host 发送 UDP 数据报的攻击者，可以将后续连接重定向到任意由攻击者指定的地址。发现结果中的连接地址是从响应体中声称的 AmsNetId 派生出来的，而非来自数据报的实际源地址。因此，一个伪造的发现响应可以插入一条指向任意主机（包括本地网络之外的主机）的设备清单条目。如果应用程序连接到已发现的设备，它将向该攻击者指定的主机建立 ADS 会话，并可能泄露其中配置的路由凭据。 此外，两

CVSS 8.5 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1566 · Phishing

Affected Version Matrix 8

VendorProduct Version RangeStatus
Apache Software Foundation Apache PLC4X 0.11.0< 1.0.0 affected
1.0.0 unaffected
0.10.0< 1.0.0 affected
1.0.0 unaffected
0.10.0< 1.0.0 affected
1.0.0 unaffected
0.11.0< 1.0.0 affected
1.0.0 unaffected
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I. Basic Information for CVE-2026-102511

Vulnerability Information
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Vulnerability Title
Apache PLC4X, Apache PLC4X, Apache PLC4X, Apache PLC4X: ADS discovery accepts spoofed responses and derives the connection target from them
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Verification of Source of a Communication Channel in the ADS discovery of the Go implementation of Apache PLC4X (PLC4Go) allows an attacker able to send UDP datagrams to the discovering host to redirect subsequent connections to an arbitrary, attacker-chosen address. The discovery result's connection address was derived from the AmsNetId claimed in the response body rather than from the datagram's actual source address. One spoofed discovery response can therefore insert an inventory entry pointing at any host, including hosts outside the local network, and an application that connects to discovered devices will open its ADS session, including any configured route credentials, to that host. Additionally, discovery listeners in both implementations can be disabled by a single malformed datagram: - In PLC4Go ADS discovery, a short version block causes a panic that ends the listener for the rest of the discovery call, so legitimate devices answering afterwards are not reported. - In PLC4J, the ADS and EtherNet/IP discoverers stop on an unhandled exception from a malformed response. - The PLC4J Modbus discoverer can be made to spin indefinitely, consuming a CPU core, by a scanned host that sends a partial response. Exploitation requires the application to invoke the discovery API, which is opt-in, and for the connection redirect, to act on the discovered items. This issue affects Apache PLC4X: PLC4Go from 0.11.0 before 1.0.0; PLC4J ADS and Modbus drivers from 0.10.0 before 1.0.0; PLC4J EtherNet/IP driver from 0.11.0 before 1.0.0. PLC4Go is consumed as the Go module github.com/apache/plc4x/plc4go; versions refer to the corresponding Apache PLC4X releases. Users are recommended to upgrade to version 1.0.0, which fixes the issue. Version 1.0.0 derives the connection address from the datagram's source address and logs a warning when the claimed AmsNetId disagrees with it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通信信道源的不正确验证
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache PLC4X 0.11.0 ~ 1.0.0 -
Apache Software Foundation Apache PLC4X 0.10.0 ~ 1.0.0 -
Apache Software Foundation Apache PLC4X 0.10.0 ~ 1.0.0 -
Apache Software Foundation Apache PLC4X 0.11.0 ~ 1.0.0 -

II. Public POCs for CVE-2026-102511

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III. Intelligence Information for CVE-2026-102511

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Mailing List Discussions for CVE-2026-102511 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-30 · 19 CVEs total

CVE-2026-102508 9.2 CRITICAL Apache PLC4X: OPC UA secure channel: integrity bypass, unverifiable server certificate, an
CVE-2026-94053 9.1 CRITICAL Apache MINA SSHD: LDAP injection in sshd-ldap
CVE-2026-94052 9.1 CRITICAL Apache MINA SSHD: LDAP password authentication ineffective
CVE-2026-77185 9.1 CRITICAL Apache MINA SSHD: Asynchronous authentication can bypass signature verification
CVE-2026-102510 8.7 HIGH Apache PLC4X: Go binding: unbounded allocation and framing failures on wire-controlled len
CVE-2026-102509 8.7 HIGH Apache PLC4X, Apache PLC4X: Pre-authentication resource exhaustion in the OPC UA driver an
CVE-2026-93994 8.1 HIGH Apache MINA SSHD: Repeated-publickey policy bypass on server
CVE-2026-94002 7.5 HIGH Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies
CVE-2026-93995 6.5 MEDIUM Apache MINA SSHD: Remote execution of JGit "archive -o=file.zip" can write file on the ser
CVE-2026-93996 6.5 MEDIUM Apache MINA SSHD: Memory exhaustion DoS via unbounded SCP command line read
CVE-2026-94029 6.5 MEDIUM Apache MINA SSHD: Memory exhaustion in SFTP v6 check-file-name/check-file-handle extension
CVE-2026-88920 Apache WSS4J: SAML Sender-Vouches Authentication Bypass
CVE-2026-87830 Apache WSS4J: Streaming WS-SecurityPolicy validation may skip element-protection checks.
CVE-2026-85532 Apache WSS4J: Insufficient Validation of Derived-Key Parameters
CVE-2026-89238 Apache WSS4J: WSS4J EncryptedHeader child confusion causing wrong protected-header selecti
CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.5
CVE-2026-92121 Apache WSS4J: WS-SecurityPolicy signature checks skipped in the streaming code after an ST
CVE-2026-92899 Apache WSS4J: UsernameToken replay protection bypassed by re-encoding the Nonce

IV. Related Vulnerabilities

Same product: Apache PLC4X
Same vendor: Apache Software Foundation
Same weakness: CWE-940

V. Comments for CVE-2026-102511

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