CVE-2023-28504

CRITICALNVD 9.89.8—

9.8

Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from a stack-based buffer overflow that can lead to remote code execution as the root user.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 83.9%
KEV: Not listed

Published

March 29, 2023

Last Modified

February 18, 2025

Advisory Details (1)

Auto-updated May 25, 2026

🔬 Proof of concept available. No patch confirmed yet.

generic🟡 PoC Available

Multiple Vulnerabilities in Rocket Software UniData's UniRPC server (Fixed) | Rapid7 Blog

https://www.rapid7.com/blog/post/2023/03/29/multiple-vulnerabilities-in-rocket-software-unirpc-server-fixed/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2023-28504?

CVE-2023-28504 is a critical vulnerability published on March 29, 2023. Rocket Software UniData versions prior to 8.2.4 build 3003 and UniVerse versions prior to 11.3.5 build 1001 or 12.2.1 build 2002 suffer from a stack-based buffer overflow that can lead to remote code execution as the root user.

When was CVE-2023-28504 disclosed?

CVE-2023-28504 was first published in the National Vulnerability Database on March 29, 2023, with the most recent update on February 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-28504 actively exploited?

CVE-2023-28504 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-28504?

CVE-2023-28504 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2023-28504?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28504, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-28504

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Multiple Vulnerabilities in Rocket Software UniData's UniRPC server (Fixed) | Rapid7 Blog

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-28504?

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Advisory Details (1)

Frequently asked(5)

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