CVE-2022-3347Network attack vector

DNS record forgery via unvalidated root keys

Published Dec 27, 2022 · Updated Apr 14, 2025

Improper DNSSEC validation in peterzen goresolver 1.0.2 and earlier allows remote attackers to make forged DNS records appear valid. The chain-of-trust verifier accepts a DNSKEY supplied as a self-signed root without comparing it to an authentic root trust anchor, so an attacker-controlled delegation chain passes validation. Exploitation requires control of DNS replies reaching a consuming application and can redirect or falsify the data that application trusts.

CVSS severity7.7
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper DNSSEC validation in peterzen goresolver 1.0.2 and earlier allows remote attackers to make forged DNS records appear valid. The chain-of-trust verifier accepts a DNSKEY supplied as a self-signed root without comparing it to an authentic root trust anchor, so an attacker-controlled delegation chain passes validation. Exploitation requires control of DNS replies reaching a consuming application and can redirect or falsify the data that application trusts.

The record

CVE
CVE-2022-3347
Published
Dec 27, 2022
Updated
Apr 14, 2025
Vendor
peterzen
Product
goresolver
Classifications
CWE-347, CWE-345, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

peterzen · goresolverAffected versions are unavailable in this record.

Published CVSS scores

7.7GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CWE-345Insufficient Verification of Data Authenticity
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo