How severe is CVE-2021-39158?

CVE-2021-39158 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-39158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39158?

CVE-2021-39158 affects Nvidia Nvcaffe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-39158?

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-2021-39158 published?

CVE-2021-39158 was published on 2021-08-23 and last updated on 2026-06-17.

CVE-2021-39158

CVE-2021-39158 is a high-severity vulnerability in Nvidia Nvcaffe with a CVSS 3.x base score of 8.8. 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-345.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Nvidia Nvcaffe
Published: 2021-08-23
Last modified: 2026-06-17

Description

NVCaffe's python required dependencies list used to contain `gfortran`version prior to 0.17.4, entry which does not exist in the repository pypi.org. An attacker could potentially have posted malicious files to pypi.org causing a user to install it within NVCaffe.

Frequently asked questions

What is CVE-2021-39158?: NVCaffe's python required dependencies list used to contain `gfortran`version prior to 0.17.4, entry which does not exist in the repository pypi.org. An attacker could potentially have posted malicious files to pypi.org causing a user to install it within NVCaffe.
How severe is CVE-2021-39158?: CVE-2021-39158 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-39158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39158?: CVE-2021-39158 affects Nvidia Nvcaffe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-39158?: 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-2021-39158 published?: CVE-2021-39158 was published on 2021-08-23 and last updated on 2026-06-17.

References

https://github.com/NVIDIA/caffe/security/advisories/GHSA-fmpp-8pwg-vwh9

Affected products (1)

cpe:2.3:a:nvidia:nvcaffe:*:*:*:*:*:*:*:*

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