CVEvulnerability

CVE-2021-34595

8.1 HIGH Published 2021-10-26 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2021-10-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0 ([email protected])
5.5 MEDIUM — AV:N/AC:L/Au:S/C:N/I:P/A:P
Weaknesses
CWE-119, CWE-823

Description

A crafted request with invalid offsets may cause an out-of-bounds read or write access in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition or local memory overwrite.

Affected configurations

• wago 750-823 firmware (< fw10) • wago 750-829 firmware (< fw17) • wago 750-831 firmware (< fw17) • wago 750-832 firmware (< fw10) • wago 750-852 firmware (< fw17) • wago 750-862 firmware (< fw10) • wago 750-880 firmware (< fw17) • wago 750-881 firmware (< fw17) • wago 750-882 firmware (< fw17) • wago 750-885 firmware (< fw17) • wago 750-889 firmware (< fw17) • wago 750-890 firmware (< fw10) • wago 750-891 firmware (< fw10) • wago 750-893 firmware (< fw10) • wago 750-8202 firmware (< fw20) • wago 750-8203 firmware (< fw20) • wago 750-8204 firmware (< fw20) • wago 750-8206 firmware (< fw20) • wago 750-8207 firmware (< fw20) • wago 750-8208 firmware (< fw20) • wago 750-8210 firmware (< fw20) • wago 750-8211 firmware (< fw20) • wago 750-8212 firmware (< fw20) • wago 750-8213 firmware (< fw20) • wago 750-8214 firmware (< fw20) • wago 750-8216 firmware (< fw20) • wago 750-8217 firmware (< fw20) • codesys codesys (< 1.1.9.22) • codesys plcwinnt (< 2.4.7.56) • codesys runtime toolkit (< 2.4.7.56)

Related

Weakness · CWE (2)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
  • CWE-823 Use of Out-of-range Pointer Offset weakness

References