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TI-2017-05801 Aliases CVE-2017-8226GHSA-g3mq-ffvf-8f3r

Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices have default credentials that are…

Priority MEDIUM 49CWE-798Published · Updated

Key facts

Attack vector
Network
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 3.0 · NVD. Fix status from CNA. Impact type from CWE-798.

Summary

Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices have default credentials that are hardcoded in the firmware and can be extracted by anyone who reverses the firmware to identify them. If the firmware version V2.420.AC00.16.R 9/9/2016 is dissected using binwalk tool, one obtains a _user-x.squashfs.img.extracted archive which contains the filesystem set up on the device that many of the binaries in the /usr folder. The binary "sonia" is the one that has the vulnerable function that sets up the default credentials on the device. If one opens this binary in IDA-pro, one will notice that this follows a ARM little endian format. The function sub_3DB2FC in IDA pro is identified to be setting up the values at address 0x003DB5A6. The sub_5C057C then sets this value and adds it to the Configuration files in /mnt/mtd/Config/Account1 file.

Why it matters now

EPSS 0.03799 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:amcrest:ipm-721s_firmware:*:*:*:*:*:*:*:*up to 2.420.ac00.16.r.20160909VulnerableAmcrest
cpe:2.3:h:amcrest:ipm-721s:-:*:*:*:*:*:*:*not specified by NVDRunning onAmcrest
  • cpe:2.3:o:amcrest:ipm-721s_firmware:*:*:*:*:*:*:*:* Versions up to 2.420.ac00.16.r.20160909 Vulnerable ·Amcrest
  • cpe:2.3:h:amcrest:ipm-721s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Amcrest

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-8226
  2. 2026-10-03 Alias added: GHSA-g3mq-ffvf-8f3r
  3. 2026-10-31 EPSS moved to the 90th–95th percentile

References

Exploit 1

Advisory 2

  • TI-2017-05804 Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices allow an unauthenticated attacker to… CVSS 3.0CRITICAL 9.8
  • TI-2017-09994 The Amcrest IPM-721S Amcrest_IPC-AWXX_Eng_N_V2.420.AC00.17.R.20170322 allows HTTP… CVSS 3.0CRITICAL 9.8
  • TI-2017-05802 Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices have a timeout policy to wait for 5… CVSS 3.0CRITICAL 9.8
  • TI-2017-05803 Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices mishandle reboots within the past two… CVSS 3.0HIGH 8.8
  • TI-2017-05805 On Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices, the users on the device are… CVSS 3.0HIGH 8.8

Sources

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