CVE-2026-102511: Apache PLC4X · f054
Affects Apache PLC4XSource CVE Database V5
Not known to be exploited · CVSS 8.5 High : upgrade to 1.0.0 soon.
Data as of 13 Nov 2026, 23:53 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.0.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade Apache PLC4X and github.com/apache/plc4x/plc4go and Apache Software Foundation/org.apache.plc4x:plc4j-driver-ads and Apache Software Foundation/org.apache.plc4x:plc4j-driver-modbus and Apache Software Foundation/org.apache.plc4x:plc4j-driver-eip to 1.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache PLC4X | Affected
| Fixed in
|
| Apache Software FoundationApache PLC4X | Affected
| Fixed in
|
GitHubgithub.com/apache/plc4x/plc4gopkg:github/github.com/apache/plc4x/plc4goOther threats | Affected
| Fixed in
|
MavenApache Software Foundation/org.apache.plc4x:plc4j-driver-adspkg:maven/Apache Software Foundation/org.apache.plc4x:plc4j-driver-adsOther threats | Affected
| Fixed in
|
MavenApache Software Foundation/org.apache.plc4x:plc4j-driver-modbuspkg:maven/Apache Software Foundation/org.apache.plc4x:plc4j-driver-modbusOther threats | Affected
| Fixed in
|
MavenApache Software Foundation/org.apache.plc4x:plc4j-driver-eippkg:maven/Apache Software Foundation/org.apache.plc4x:plc4j-driver-eipOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade to Apache PLC4X version 1.0.0 or later, which fixes the vulnerability by deriving connection addresses from the datagram source address and logging warnings on mismatches. This upgrade addresses both the connection redirection and denial-of-service issues. No other mitigation is required if the upgrade is applied.
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.