HOMEVULNERABILITIESCVE-2021-34870
MEDIUM

CVE-2021-34870

CWE-306Published: January 25, 2022· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR XR1000 1.0.0.52_1.0.38 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of SOAP messages. The issue results from a lack of authentication required for a privileged request. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13325.

NVD Source

Technical Analysis

CVE-2021-34870 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

netgear1 product(s)
xr1000
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://kb.netgear.com/000063967/Security-Advisory-for-a-Security-Misconfiguration-Vulnerability-on-the-XR1000-PSV-2021-0101
PATCHhttps://kb.netgear.com/000063967/Security-Advisory-for-a-Security-Misconfiguration-Vulnerability-on-the-XR1000-PSV-2021-0101
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1058/
ADVISORYhttps://www.zerodayinitiative.com/advisories/ZDI-21-1058/

All References (4)

→
https://kb.netgear.com/000063967/Security-Advisory-for-a-Security-Misconfiguration-Vulnerability-on-the-XR1000-PSV-2021-0101Patch · Vendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1058/Third Party Advisory · VDB Entry
→
https://kb.netgear.com/000063967/Security-Advisory-for-a-Security-Misconfiguration-Vulnerability-on-the-XR1000-PSV-2021-0101Patch · Vendor Advisory
→
https://www.zerodayinitiative.com/advisories/ZDI-21-1058/Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2021-34870
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-306
CISA KEVNo
Affected1 vendor(s)
PublishedJan 25, 2022

Related CVEs (CWE-306)

CVE-2020-26823
10.0
CVE-2026-62422
10.0
CVE-2020-26821
10.0
CVE-2020-26822
10.0
CVE-2020-26824
10.0
CVE-2014-9195
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-34870 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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