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No exploitation reportedFix available

CVE-2018-7853

No exploitation reported by the sources we read.

  • Published2019-05-22
  • Fixed in3.10
  • WeaknessCWE-754

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading invalid physical memory blocks in the controller over Modbus

Timeline

dates in UTC
  1. 2019-05-2221:29CVE publishedNVD

Versions per branch

NVD
Schneider-electric modicon m340 firmwareversion to verify
BranchAffectedFixed in
3.10< 3.103.10
Schneider-electric modicon m580 firmwareversion to verify
BranchAffectedFixed in
2.90< 2.902.90
Schneider-electric modicon premium firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-25-114-01 CISA1 product fixed · 1 known affected

    Schneider Electric Modicon Controllers (Update A)

    Modicon M580 Firmware Versions prior to v2.90 installed on Modicon M580 Controller

Full record on NVD

Fix

  1. Update Schneider-electric modicon m340 firmware to 3.10
  2. Vendor fix CISA ICSA-25-114-01 · 1 productVersion sv4.20 of Modicon M580 includes a fix for this vulnerability and is available for download here: STEP 1: Update software and firmware. • On the engineering workstation, update to EcoStruxure Control Expert v16.0: https://www.se.com/ww/en/product-range/548-ecostruxure-control-expert-unity-pr…
  3. Mitigation from the vendor CISA ICSA-25-114-01 · 1 productIt is recommended to apply the following mitigations to reduce the risk of exploitation: • Set up an application password in the project properties • Set up network segmentation and implement a firewall to block all unauthorized access to port 502/TCP • Configure the Access Control List following t…

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2019-05-22
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-fhc3-g4v6-vmpr

Frequently asked questions

What is CVE-2018-7853?

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading invalid physical memory blocks in the controller over Modbus

Is CVE-2018-7853 actively exploited?

Active exploitation of CVE-2018-7853 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-7853?

CVE-2018-7853 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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