CVE-2021-45773
CVE-2021-45773 is a high-severity vulnerability in Mz-automation Lib60870 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-476
- Affected product: Mz-automation Lib60870
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-45773?
- CVE-2021-45773 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-45773 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45773?
- CVE-2021-45773 affects Mz-automation Lib60870. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45773?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-45773 published?
- CVE-2021-45773 was published on 2022-01-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mz-automation:lib60870:*:*:*:*:*:*:*:*
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