How severe is CVE-2025-23349?

CVE-2025-23349 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-2025-23349 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-23349?

CVE-2025-23349 primarily affects Nvidia Megatron-lm. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-23349?

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-2025-23349 have an EU (EUVD) identifier?

Yes. CVE-2025-23349 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30971.

When was CVE-2025-23349 published?

CVE-2025-23349 was published on 2025-09-24 and last updated on 2026-06-17.

CVE-2025-23349

CVE-2025-23349 is a high-severity vulnerability in Nvidia Megatron-lm 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-94.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-30971
Weakness: CWE-94
Affected product: Nvidia Megatron-lm
Published: 2025-09-24
Last modified: 2026-06-17

Description

NVIDIA Megatron-LM for all platforms contains a vulnerability in the tasks/orqa/unsupervised/nq.py component, where an attacker may cause a code injection. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

Frequently asked questions

What is CVE-2025-23349?: NVIDIA Megatron-LM for all platforms contains a vulnerability in the tasks/orqa/unsupervised/nq.py component, where an attacker may cause a code injection. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.
How severe is CVE-2025-23349?: CVE-2025-23349 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-2025-23349 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-23349?: CVE-2025-23349 primarily affects Nvidia Megatron-lm. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-23349?: 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-2025-23349 have an EU (EUVD) identifier?: Yes. CVE-2025-23349 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-30971.
When was CVE-2025-23349 published?: CVE-2025-23349 was published on 2025-09-24 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:nvidia:megatron-lm:*:*:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:-:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:rc0:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:rc3:*:*:*:*:*:*
cpe:2.3:a:nvidia:megatron-lm:0.13.0:rc4:*:*:*:*:*:*

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