High severity · published Jan 14, 2022
CVE-2021-45773
A NULL pointer dereference in CS104_IPAddress_setFromString at src/iec60870/cs104/cs104_slave.c of lib60870 commit 0d5e76e can lead to a segmentation fault or application crash
7.5
CVSS
1.1%
EPSS
No
On KEV
Description
A NULL pointer dereference in CS104_IPAddress_setFromString at src/iec60870/cs104/cs104_slave.c of lib60870 commit 0d5e76e can lead to a segmentation fault or application crash.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Lib60870 · Mz-automation
before 2.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45773
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45773
Exploit
https://github.com/mz-automation/lib60870/issues/100
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