Description
Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the industrial networks growing more and more together.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/12/20/2
Scores
CVSS v3
8.8
EPSS
0.0207
EPSS Percentile
84.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-119
CWE-191
Status
published
Products (1)
apache/plc4x
< 0.9.1
Published
Dec 19, 2021
Tracked Since
Feb 18, 2026