CVE-2023-28798
CRITICALCVSS 9.8/10EPSS 0.43%
Last modified
CVE-2023-28798 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zscaler | Client Connector | < 3.7 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2023-28798?
An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.
How severe is CVE-2023-28798?
CVE-2023-28798 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28798?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-28792Unauth. Reflected Cross-Site Scripting (XSS) vulnerability i…6.1
- CVE-2023-28793Buffer overflow vulnerability in the signelf library used by…7.8
- CVE-2023-28794Origin Validation Error vulnerability in Zscaler Client Conn…6.5
- CVE-2023-28795Origin Validation Error vulnerability in Zscaler Client Conn…7.8
- CVE-2023-28796Improper Verification of Cryptographic Signature vulnerabili…7.8
- CVE-2023-28797Zscaler Client Connector for Windows before 4.1 writes/delet…7.3
- CVE-2023-28799A URL parameter during login flow was vulnerable to injectio…6.1
- CVE-2023-2880Frauscher Sensortechnik GmbH FDS001 for FAdC/FAdCi v1.3.3 an…7.5
- CVE-2023-28800When using local accounts for administration, the redirect u…6.1
- CVE-2023-28801An Improper Verification of Cryptographic Signature in the S…9.8
- CVE-2023-28802An Improper Validation of Integrity Check Value in Zscaler C…5.4
- CVE-2023-28803An authentication bypass by spoofing of a device with a synt…6.5
Are you affected by CVE-2023-28798?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST