5.3

CVE-2018-8836: wago 750-829_firmware Improper Resource Shutdown or Release

CVSS: 5.3v3.0MediumModified
Published 03-04-2018Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2018-8836 is a medium (CVSS 5.3) Improper Resource Shutdown or Release vulnerability in wago 750-829_firmware. EPSS estimates a 3.71% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.0 (NVD)
EPSS score
3.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-04-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.71%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.71% on 19-09-2026

19-09-202619-10-2026
EPSS score
3.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wago9 products

1 vendor · 9 products

References

3 links