CVE-2023-28801
CVE-2023-28801 is a critical-severity vulnerability in Zscaler Zscaler Internet Access Admin Portal with a CVSS 3.x base score of 9.6. 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-347.
Key facts
- Severity: Critical (CVSS 3.x base score 9.6)
- EPSS exploit prediction: 0% (25th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-347
- Affected product: Zscaler Zscaler Internet Access Admin Portal
- Published:
- Last modified:
Description
An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.
Frequently asked questions
- What is CVE-2023-28801?
- An Improper Verification of Cryptographic Signature in the SAML authentication of the Zscaler Admin UI allows a Privilege Escalation.This issue affects Admin UI: from 6.2 before 6.2r.
- How severe is CVE-2023-28801?
- CVE-2023-28801 has a CVSS 3.x base score of 9.6, rated critical 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 none.
- Is CVE-2023-28801 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-28801?
- CVE-2023-28801 affects Zscaler Zscaler Internet Access Admin Portal. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-28801?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2023-28801 published?
- CVE-2023-28801 was published on 2023-08-31 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zscaler:zscaler_internet_access_admin_portal:*:*:*:*:*:*:*:*
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