How severe is CVE-2022-3347?

CVE-2022-3347 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 high, and availability none.

Is CVE-2022-3347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-3347?

CVE-2022-3347 affects Go-resolver Project Go-resolver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-3347?

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-2022-3347 published?

CVE-2022-3347 was published on 2022-12-28 and last updated on 2026-06-17.

CVE-2022-3347

CVE-2022-3347 is a high-severity vulnerability in Go-resolver Project Go-resolver 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-345.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Go-resolver Project Go-resolver
Published: 2022-12-28
Last modified: 2026-06-17

Description

DNSSEC validation is not performed correctly. An attacker can cause this package to report successful validation for invalid, attacker-controlled records. Root DNSSEC public keys are not validated, permitting an attacker to present a self-signed root key and delegation chain.

Frequently asked questions

What is CVE-2022-3347?: DNSSEC validation is not performed correctly. An attacker can cause this package to report successful validation for invalid, attacker-controlled records. Root DNSSEC public keys are not validated, permitting an attacker to present a self-signed root key and delegation chain.
How severe is CVE-2022-3347?: CVE-2022-3347 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 high, and availability none.
Is CVE-2022-3347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-3347?: CVE-2022-3347 affects Go-resolver Project Go-resolver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-3347?: 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-2022-3347 published?: CVE-2022-3347 was published on 2022-12-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:go-resolver_project:go-resolver:-:*:*:*:*:go:*:*

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