CVE-2023-28793
CVE-2023-28793 is a high-severity vulnerability in Zscaler Client Connector with a CVSS 3.x base score of 7.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Zscaler Client Connector
- Published:
- Last modified:
Description
Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.
Frequently asked questions
- What is CVE-2023-28793?
- Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.
- How severe is CVE-2023-28793?
- CVE-2023-28793 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-28793 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-28793?
- CVE-2023-28793 affects Zscaler Client Connector. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-28793?
- 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-2023-28793 published?
- CVE-2023-28793 was published on 2023-10-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:linux:*:*
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