Cleartext wireless credential storage in CareCam CM2507 IP cameras

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What is CVE-2026-81321?

CVE-2026-81321 is a vulnerability classified as Cleartext Storage of Sensitive Information, affecting HMT.CM2507 Firmware (affected versions: v251211.1507). This vulnerability is rated Critical, with a CVSS score of 9.3. Current sources do not report this vulnerability as exploited.

Overview

Original source data

CM2507 IP cameras store configured wireless network credentials in cleartext within the device filesystem. An attacker who obtains filesystem access through physical access, a debugging interface, or another vulnerability could recover the configured network identifier and pre-shared key.

Affected products and scope

  • CareCam HMT.CM2507 Firmware v251211.1507: identified as affected. The issue is that CM2507 IP cameras store wireless network credentials in cleartext within the device filesystem.
  • The record does not identify additional affected release branches, unaffected releases, or a fixed release. The status of other versions remains unknown.

Technical details

CareCam CM2507 IP cameras store configured wireless credentials as cleartext in the device filesystem. The exposed data includes the configured network identifier and pre-shared key. An attacker must obtain filesystem access, which the record says may occur through physical access, a debugging interface, or another vulnerability. This is CWE-312, but the public evidence does not identify the file path, data format, filesystem permissions, or any additional protection mechanism. The scoring metadata describes a network-reachable path with no authentication requirement, but the technical description does not establish that network access alone provides filesystem access.

Exploitability

The supplied record describes exploitation as dependent on filesystem access. The identified routes are physical access, a debugging interface, or another vulnerability; the record does not confirm which route would be used in a particular deployment. The scoring metadata characterizes the path as network reachable, low complexity, requiring no privileges and no user interaction, but it does not explain the difference between those properties and the filesystem-access prerequisite in the technical description. CISA stated that no known public exploitation specifically targeting these vulnerabilities had been reported at the time of its advisory. The available evidence does not show that this vulnerability has been exploited in the wild.

Technical impact

The flaw directly exposes the configured network identifier and pre-shared key stored in the filesystem. If an attacker obtains the filesystem, the values could be recovered without defeating encryption of the stored data, according to the available description. Using the recovered key to access the wireless network or affect other systems depends on whether the credential is still valid, wireless reachability, network segmentation, and additional controls. The record does not establish that this issue alone grants camera administration, code execution, or direct access to other resources. It can nevertheless weaken the trust boundary around the wireless network and enable follow-on activity when an attacker already has filesystem access.

Business impact

  • Disclosure of the pre-shared key could compromise the confidentiality of the wireless network used by the camera if the key remains valid.
  • An attacker could use recovered network information to attempt access to resources on the same network segment; the actual scope depends on segmentation, firewall rules, and additional authentication controls.
  • Disclosure of the network identifier helps identify the configured network, but the record does not establish that this information alone permits network access.
  • The vulnerability does not by itself prove compromise of the camera or connected systems. Integrity, availability, or lateral-movement consequences are possible conditional outcomes, not confirmed results.
  • If the filesystem may have been accessed, the pre-shared key should be treated as potentially exposed until it is changed.

Remediation

  1. CISA states that CareCam did not respond to coordination attempts and encourages users to contact CareCam for more information. No fixed release or vendor patch is identified in the available evidence.
  2. For devices running firmware v251211.1507, perform an impact assessment and keep the devices in the remediation scope until CareCam provides verified guidance or corrected firmware.
  3. Reduce network exposure by preventing direct Internet access, placing camera or control-system networks behind firewalls, and isolating them from business networks.
  4. When remote access is required, use a more secure method such as an updated VPN, while also securing the devices connected through that VPN.
  5. If filesystem access may have occurred, treat the pre-shared key as potentially exposed and rotate the wireless credential after assessing the effect. This reduces risk but does not correct the cleartext-storage defect.
  6. Review and restrict physical access, debugging interfaces, and other services that could provide filesystem access to the device.

Detection

  • Inventory CareCam CM2507 devices and identify their installed firmware, with particular attention to devices in the affected branch identified by the advisory.
  • Check whether devices are exposed to physical access or have a debugging interface connected, enabled, or accessible in the deployment environment.
  • Review other services and vulnerabilities that could provide filesystem access on the same device.
  • Where authorized, inspect the device filesystem to determine whether the network identifier and pre-shared key are stored as cleartext. Do not assume a file path or filename that is not documented by the source.
  • Review firewall, network segmentation, and remote-access controls to confirm that cameras are not directly exposed to the Internet.
  • No specific log event or IOC is provided for this issue. Absence of related log evidence does not establish that a device is safe.
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