How severe is CVE-2022-3479?

CVE-2022-3479 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-3479 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-3479?

CVE-2022-3479 affects Mozilla Network Security Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-3479?

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-2022-3479 published?

CVE-2022-3479 was published on 2022-10-14 and last updated on 2026-06-17.

CVE-2022-3479

CVE-2022-3479 is a high-severity vulnerability in Mozilla Network Security Services 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mozilla Network Security Services
Published: 2022-10-14
Last modified: 2026-06-17

Description

A vulnerability found in nss. By this security vulnerability, nss client auth crash without a user certificate in the database and this can lead us to a segmentation fault or crash.

Frequently asked questions

What is CVE-2022-3479?: A vulnerability found in nss. By this security vulnerability, nss client auth crash without a user certificate in the database and this can lead us to a segmentation fault or crash.
How severe is CVE-2022-3479?: CVE-2022-3479 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-3479 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-3479?: CVE-2022-3479 affects Mozilla Network Security Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-3479?: 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-2022-3479 published?: CVE-2022-3479 was published on 2022-10-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*

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