Codesys vulnerabilities, page 2
156 vulnerabilities
Known vulnerabilities in Codesys products, newest first, with CVSS severity, EPSS, KEV listings and ransomware use, across 139 products.
CVE-2021-30188codesysv2_runtime_system_sp+27
EPSS score1.27%
CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.CVE-2021-30193codesysv2_web_server+27EPSS score1.12%
CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write.CVE-2021-30195codesysplcwinnt+28EPSS score7.55%
CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.CVE-2021-30191codesysv2_web_server+27EPSS score0.99%
CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.CVE-2021-30192codesysv2_web_server+27EPSS score1.12%
CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check.CVE-2021-30187codesysruntime_toolkit+27EPSS score0.27%
CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.CVE-2021-30189codesysv2_web_server+27EPSS score1.24%
CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow.CVE-2021-30194codesysv2_web_server+27EPSS score1.12%
CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Read.CVE-2021-30186codesysplcwinnt+28EPSS score7.74%
CODESYS V2 runtime system SP before 2.4.7.55 has a Heap-based Buffer Overflow.CVE-2021-34596codesyscodesys+30EPSS score0.83%
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.CVE-2021-34583codesyscodesys+28EPSS score8.84%
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.CVE-2021-34595codesyscodesys+30EPSS score0.85%
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.CVE-2021-34584codesyscodesys+28EPSS score1.08%
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.CVE-2021-34593codesyscodesys v2+15EPSS score2.66%
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 clients may be blocked from accessing the PLC.CVE-2021-34586codesyscodesys+28EPSS score13.74%
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.CVE-2021-34599codesyscodesys git+1EPSS score0.47%
Affected versions of CODESYS Git in Versions prior to V1.1.0.0 lack certificate validation in HTTPS handshakes. CODESYS Git does not implement certificate validation by default, so it does not verify that the server provides a valid and trusted HTTPS certificate. Since the certificate of the server to which the connection is made is not properly verified, the server connection is vulnerable to a man-in-the-middle attack.CVE-2021-34585codesyscodesys+28EPSS score0.90%
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 situation.CVE-2021-33485codesyscontrol+6EPSS score1.14%
CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.CVE-2021-33486codesysruntime_toolkitEPSS score0.96%
All versions of the CODESYS V3 Runtime Toolkit for VxWorks from version V3.5.8.0 and before version V3.5.17.10 have Improper Handling of Exceptional Conditions.CVE-2015-64603s-smartcodesys_gateway_server+1EPSS score6.21%
Multiple heap-based buffer overflows in 3S-Smart CODESYS Gateway Server before 2.3.9.34 allow remote attackers to execute arbitrary code via opcode (1) 0x3ef or (2) 0x3f0.