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TI-2021-11634 Aliases CVE-2021-31505GHSA-49rv-vwhv-6vcw

Hard-coded credentials in Arlo Q Plus

Priority LOW 31CWE-798Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-798.

Summary

This vulnerability allows attackers with physical access to escalate privileges on affected installations of Arlo Q Plus 1.9.0.3_278. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SSH service. The device can be booted into a special operation mode where hard-coded credentials are accepted for SSH authentication. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-12890.

Why it matters now

EPSS 0.00551 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ArloQ Plus1.9.0.3_278—No fix listedCNA
  • Q Plus VendorArlo Affected 1.9.0.3_278 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:arlo:q_plus_firmware:1.9.0.3_278:*:*:*:*:*:*:*1.9.0.3_278VulnerableArlo
cpe:2.3:h:arlo:q_plus:-:*:*:*:*:*:*:*not specified by NVDRunning onArlo
  • cpe:2.3:o:arlo:q_plus_firmware:1.9.0.3_278:*:*:*:*:*:*:* Versions 1.9.0.3_278 Vulnerable ·Arlo
  • cpe:2.3:h:arlo:q_plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arlo

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31505
  2. 2026-10-03 Alias added: GHSA-49rv-vwhv-6vcw

References

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences