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CVE-2020-11965

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to...

9.8 CriticalDisputed

CVE-2020-11965 is a critical vulnerability (CVSS 9.8) in Evenroute Iqrouter Firmware, published April 21, 2020. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 2.07%, the 81st percentile.

Severity
9.8 CriticalCVSS 3.1, NVD
Exploit chance
2.07%EPSS, 81st percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.07%Up 1.0 points since Apr 14, 2021
90%50%10%1%

Affected products

What each source reports

NVD Score used9.8

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Record
CVE-2020-11965
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-287
Updated
2026-11-02
CVE ListNo score

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Record
CVE-2020-11965
Updated
2026-11-02
EUVDEUVD-2020-4302No score

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Record
EUVD-2020-4302
Updated
2026-11-03
GitHub AdvisoriesGHSA-pww2-wm88-cp3p9.8

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to...

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH.

Record
GHSA-pww2-wm88-cp3p
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-287, CWE-522
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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