How severe is CVE-2025-54923?

CVE-2025-54923 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2025-54923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-54923?

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.

Does CVE-2025-54923 have an EU (EUVD) identifier?

Yes. CVE-2025-54923 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25294.

When was CVE-2025-54923 published?

CVE-2025-54923 was published on 2025-08-20 and last updated on 2026-06-17.

CVE-2025-54923

CVE-2025-54923 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-502.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25294
Weakness: CWE-502
Published: 2025-08-20
Last modified: 2026-06-17

Description

CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause remote code execution and compromise of system integrity when authenticated users send crafted data to a network-exposed service that performs unsafe deserialization.

Frequently asked questions

What is CVE-2025-54923?: CWE-502: Deserialization of Untrusted Data vulnerability exists that could cause remote code execution and compromise of system integrity when authenticated users send crafted data to a network-exposed service that performs unsafe deserialization.
How severe is CVE-2025-54923?: CVE-2025-54923 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2025-54923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-54923?: 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.
Does CVE-2025-54923 have an EU (EUVD) identifier?: Yes. CVE-2025-54923 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25294.
When was CVE-2025-54923 published?: CVE-2025-54923 was published on 2025-08-20 and last updated on 2026-06-17.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-224-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-224-02.pdf

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities

CVE-2026-41104 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Planetary Computer Pro allows an unauthorized attacker to disclose…
CVE-2026-43633 — Critical (CVSS 10.0): HestiaCP versions 1.9.0 through 1.9.4 contain a deserialization vulnerability in the web terminal component caused by a…
CVE-2026-33819 — Critical (CVSS 10.0): Deserialization of untrusted data in Microsoft Bing allows an unauthorized attacker to execute code over a network.
CVE-2026-20131 — Critical (CVSS 10.0): A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could…
CVE-2026-25632 — Critical (CVSS 10.0): EPyT-Flow is a Python package designed for the easy generation of hydraulic and water quality scenario data of water…
CVE-2025-14931 — Critical (CVSS 10.0): Hugging Face smolagents Remote Python Executor Deserialization of Untrusted Data Remote Code Execution Vulnerability.…

Browse all CWE-502 (Deserialization of Untrusted Data) vulnerabilities →