CVE-2022-3347: DNSSEC validation is not performed correctly

Routine

HIGH 7.5REMOTEMITIGATE

CVE-2022-3347 is a high-severity flaw (CVSS 7.5) affecting go-resolver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-345
Published	2022-12-28
Last modified	2026-06-17

Publisher (CNA): Go Project · Vendor: go-resolver project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-28 03:15 UTCPublished CVE record published
2026-06-17 04:59 UTCUpdated Record last modified

go-resolver project go-resolver MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy go-resolver || rpm -q go-resolver || go-resolver --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-3347?

go-resolver: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-3347 being exploited?

CVE-2022-3347 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-3347 affect?

CVE-2022-3347 affects go-resolver. Severity is high (CVSS 7.5). 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-s

How urgent is CVE-2022-3347?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-3346 MEDIUM 6.5 MITIGATE DNSSEC validation is not performed correctly

References

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