How severe is CVE-2023-5058?

CVE-2023-5058 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-2023-5058 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5058?

CVE-2023-5058 affects Phoenixtech Securecore Technology. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5058?

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-2023-5058 published?

CVE-2023-5058 was published on 2023-12-07 and last updated on 2026-06-17.

CVE-2023-5058

CVE-2023-5058 is a high-severity vulnerability in Phoenixtech Securecore Technology 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Phoenixtech Securecore Technology
Published: 2023-12-07
Last modified: 2026-06-17

Description

Improper Input Validation in the processing of user-supplied splash screen during system boot in Phoenix SecureCore™ Technology™ 4 potentially allows denial-of-service attacks or arbitrary code execution.

Frequently asked questions

What is CVE-2023-5058?: Improper Input Validation in the processing of user-supplied splash screen during system boot in Phoenix SecureCore™ Technology™ 4 potentially allows denial-of-service attacks or arbitrary code execution.
How severe is CVE-2023-5058?: CVE-2023-5058 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-2023-5058 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5058?: CVE-2023-5058 affects Phoenixtech Securecore Technology. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5058?: 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-2023-5058 published?: CVE-2023-5058 was published on 2023-12-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:phoenixtech:securecore_technology:4.*:*:*:*:*:*:*:*

More vulnerabilities in Phoenixtech Securecore Technology

CVE-2023-31100 — High (CVSS 8.4): Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash…
CVE-2024-1598 — High (CVSS 7.5): Potential buffer overflow in unsafe UEFI variable handling in Phoenix SecureCore™ for Intel Gemini Lake.This issue…
CVE-2024-0762 — High (CVSS 7.5): Potential buffer overflow in unsafe UEFI variable handling in Phoenix SecureCore™ for select Intel…
CVE-2024-12533 — Low (CVSS 3.3): Improper Check for Unusual or Exceptional Conditions vulnerability in Phoenix SecureCore Technology 4 allows Input Data…
CVE-2024-29980 — Low (CVSS 2.3): Improper Check for Unusual or Exceptional Conditions vulnerability in Phoenix SecureCore™ for Intel Kaby Lake,…
CVE-2024-29979 — Low (CVSS 2.3): Improper Check for Unusual or Exceptional Conditions vulnerability in Phoenix SecureCore™ for Intel Kaby Lake,…

All CVEs affecting Phoenixtech Securecore Technology →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →