6.5
MEDIUM
CVE-2018-7851
"Modicon Buffer Overflow Denial of Service Vulnerability"
Description

CWE-119: Buffer errors vulnerability exists in Modicon M580 with firmware prior to V2.50, Modicon M340 with firmware prior to V3.01, BMxCRA312xx with firmware prior to V2.40, All firmware versions of Modicon Premium and 140CRA312xxx when sending a specially crafted Modbus packet, which could cause a denial of service to the device that would force a restart to restore availability.

INFO

Published Date :

May 22, 2019, 8:29 p.m.

Last Modified :

April 10, 2024, 12:28 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2018-7851 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Schneider-electric modicon_premium_firmware
2 Schneider-electric modicon_premium
3 Schneider-electric modicon_m340_bmxp341000
4 Schneider-electric modicon_m340_bmxp342020
5 Schneider-electric modicon_m580_bmep581020
6 Schneider-electric modicon_m580_bmep581020h
7 Schneider-electric modicon_m580_bmep582020
8 Schneider-electric modicon_m580_bmep582020h
9 Schneider-electric modicon_m580_bmep582040
10 Schneider-electric modicon_m580_bmep582040h
11 Schneider-electric modicon_m580_bmep582040s
12 Schneider-electric modicon_m580_bmep583020
13 Schneider-electric modicon_m580_bmep583040
14 Schneider-electric modicon_m580_bmep584020
15 Schneider-electric modicon_m580_bmep584040
16 Schneider-electric modicon_m580_bmep584040s
17 Schneider-electric modicon_m580_bmep585040
18 Schneider-electric modicon_m580_bmep585040c
19 Schneider-electric modicon_m580_bmep586040
20 Schneider-electric modicon_m580_bmep586040c
21 Schneider-electric m580_firmware
22 Schneider-electric m340_firmware
23 Schneider-electric bmx\/e_cra_firmware
24 Schneider-electric 140cra312xxx_firmware
25 Schneider-electric modicon_m340_bmxp342020h
26 Schneider-electric modicon_m340_bmxp3420302
27 Schneider-electric modicon_m340_bmxp3420302h
28 Schneider-electric modicon_m340_bmxp342000
29 Schneider-electric modicon_m340_bmxp3420102
30 Schneider-electric modicon_m340_bmxp3420102cl
31 Schneider-electric modicon_m340_bmxp3420302cl
32 Schneider-electric modicon_m340_bmxp341000h
33 Schneider-electric bmeh582040
34 Schneider-electric bmeh582040c
35 Schneider-electric bmeh584040
36 Schneider-electric bmeh584040c
37 Schneider-electric bmeh586040
38 Schneider-electric bmeh586040c
39 Schneider-electric bmxcra31200
40 Schneider-electric bmxcra31210c
41 Schneider-electric 140cra312xxx
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-7851.

URL Resource
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-10/ Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-7851 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-7851 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Apr. 19, 2022

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep585040:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep585040c:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep585040c:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep583040:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep584020:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep582040s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep584040s:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep584040:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep586040:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep586040c:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep586040c:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep581020h:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep581020h:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep582020:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep581020:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep582040h:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040h:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep583020:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep582020h:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep582020h:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 18, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:bmep582040:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Schneider Electric SE CWE-119
  • Initial Analysis by [email protected]

    May. 23, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:N/A:C)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.schneider-electric.com/en/download/document/SEVD-2019-134-10/ No Types Assigned https://www.schneider-electric.com/en/download/document/SEVD-2019-134-10/ Vendor Advisory
    Added CWE CWE-119
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:m580_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.50 OR cpe:2.3:h:schneider-electric:bmeh582040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmeh582040c:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmeh584040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmeh584040c:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmeh586040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmeh586040c:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep581020:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep581020h:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep582020:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep582020h:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep582040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep582040h:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep582040s:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep583020:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep583040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep584020:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep584040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep584040s:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep585040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep585040c:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep586040:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmep586040c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:m340_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.01 OR cpe:2.3:h:schneider-electric:bmxp341000:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp341000h:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp342000:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp3420102:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp3420102cl:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp342020:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp342020h:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp3420302:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp3420302cl:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxp3420302h:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:bmx\/e_cra_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.40 OR cpe:2.3:h:schneider-electric:bmxcra31200:-:*:*:*:*:*:*:* cpe:2.3:h:schneider-electric:bmxcra31210c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:modicon_premium:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:140cra312xxx_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:schneider-electric:140cra312xxx:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.08 }} 0.00%

score

0.33067

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability