How severe is CVE-2025-33255?

CVE-2025-33255 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-33255 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.

What products are affected by CVE-2025-33255?

CVE-2025-33255 affects Nvidia Tensorrt Llm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-33255?

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-2025-33255 have an EU (EUVD) identifier?

Yes. CVE-2025-33255 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209903.

When was CVE-2025-33255 published?

CVE-2025-33255 was published on 2026-05-20 and last updated on 2026-07-24.

CVE-2025-33255

CVE-2025-33255 is a high-severity vulnerability in Nvidia Tensorrt Llm with a CVSS 3.x base score of 7.5. 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 3.x base score 7.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209903
Weakness: CWE-502
Affected product: Nvidia Tensorrt Llm
Published: 2026-05-20
Last modified: 2026-07-24

Description

NVIDIA TRT-LLM for any platform contains a vulnerability in MPI server, where an attacker could cause an unsafe deserialization. A successful exploit of this vulnerability might lead to code execution, denial of service, data tampering, and information disclosure.

Frequently asked questions

What is CVE-2025-33255?: NVIDIA TRT-LLM for any platform contains a vulnerability in MPI server, where an attacker could cause an unsafe deserialization. A successful exploit of this vulnerability might lead to code execution, denial of service, data tampering, and information disclosure.
How severe is CVE-2025-33255?: CVE-2025-33255 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-33255 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.
What products are affected by CVE-2025-33255?: CVE-2025-33255 affects Nvidia Tensorrt Llm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-33255?: 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-2025-33255 have an EU (EUVD) identifier?: Yes. CVE-2025-33255 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209903.
When was CVE-2025-33255 published?: CVE-2025-33255 was published on 2026-05-20 and last updated on 2026-07-24.

References

Affected products (1)

cpe:2.3:a:nvidia:tensorrt_llm:*:*:*:*:*:*:*:*

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