CVE-2022-32140
CVE-2022-32140 is a medium-severity vulnerability in Codesys Plcwinnt with a CVSS 3.x base score of 6.5. 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-120.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: Codesys Plcwinnt
- Published:
- Last modified:
Description
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.
Frequently asked questions
- What is CVE-2022-32140?
- Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.
- How severe is CVE-2022-32140?
- CVE-2022-32140 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-32140 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-32140?
- CVE-2022-32140 primarily affects Codesys Plcwinnt. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-32140?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2022-32140 published?
- CVE-2022-32140 was published on 2022-06-24 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:codesys:plcwinnt:*:*:*:*:*:*:*:*
- cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:*:x86:*
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- CVE-2022-32138 — High (CVSS 8.8): In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension,…
- CVE-2022-32137 — High (CVSS 8.8): In multiple CODESYS products, a low privileged remote attacker may craft a request, which may cause a heap-based buffer…
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- CVE-2022-1965 — High (CVSS 8.1): Multiple products of CODESYS implement a improper error handling. A low privilege remote attacker may craft a request,…
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