CVE-2021-45891
CVE-2021-45891 is a high-severity vulnerability in Zauner Arc with a CVSS 3.x base score of 8.8. 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-669.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-669
- Affected product: Zauner Arc
- Published:
- Last modified:
Description
An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4., that allows attackers to escalate privileges within the application, since all permission checks are done client-side, not server-side.
Frequently asked questions
- What is CVE-2021-45891?
- An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4., that allows attackers to escalate privileges within the application, since all permission checks are done client-side, not server-side.
- How severe is CVE-2021-45891?
- CVE-2021-45891 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-45891 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45891?
- CVE-2021-45891 affects Zauner Arc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45891?
- 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-2021-45891 published?
- CVE-2021-45891 was published on 2022-04-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zauner:arc:4.2.0.4:*:*:*:*:*:*:*
More vulnerabilities in Zauner Arc
- CVE-2021-45893 — High (CVSS 7.5): An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4. There is Improper Handling of Case Sensitivity, which…
- CVE-2021-45892 — Medium (CVSS 5.9): An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4. There is storage of Passwords in a Recoverable Format.
- CVE-2021-45894 — Medium (CVSS 5.9): An issue was discovered in Softwarebuero Zauner ARC 4.2.0.4. There is Cleartext Transmission of Sensitive Information.
All CVEs affecting Zauner Arc →
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