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Product · CODESYS

CODESYS V2

7 known vulnerabilities.

CODESYS V2 at a glance

Last 12 months
0
Critical · all time
1
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
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All Critical High Medium Low Exploited only Public exploit

7 results · Feed

  • Medium 6.5
    CVE-2021-34596

    CODESYS V2 runtime: Access of Uninitialized Pointer may result in denial-of-service

    A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.

    CODESYS CODESYS V2 ICS / OT
  • High 8.1
    CVE-2021-34595

    CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service

    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.

    CODESYS CODESYS V2 ICS / OT
  • High 7.5
    CVE-2021-34593

    CODESYS V2 runtime: unauthenticated invalid requests may result in denial-of-service

    In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication…

    CODESYS CODESYS V2 ICS / OT
  • High 7.5
    CVE-2021-34586 EPSS 14%

    CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)

    In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.

    CODESYS CODESYS V2 ICS / OT
  • High 7.5
    CVE-2021-34585

    CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)

    In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service sit…

    CODESYS CODESYS V2 ICS / OT
  • Critical 9.1
    CVE-2021-34584

    CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)

    Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

    CODESYS CODESYS V2 ICS / OT
  • High 7.5
    CVE-2021-34583

    CODESYS V2 web server: crafted requests could trigger a heap-based buffer overflow (DoS)

    Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

    CODESYS CODESYS V2 ICS / OT