Medium severity · published May 31, 2023
CVE-2023-2758
A denial of service vulnerability exists in Contec CONPROSYS HMI System versions 3.5.2 and prior
5.3
CVSS
1%
EPSS
No
On KEV
Description
A denial of service vulnerability exists in Contec CONPROSYS HMI System versions 3.5.2 and prior. When there is a time-zone mismatch in certain configuration files, a remote, unauthenticated attacker may deny logins for an extended period of time.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Conprosys Hmi System · Contec
before 3.5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2758
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-2758
Third Party Advisory
https://jvn.jp/en/vu/JVNVU93372935/index.html
Exploit
https://www.tenable.com/security/research/tra-2023-21
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