Security readout for executives and security teams
Plain-English summary
CVE-2020-36873 is an unauthenticated configuration disclosure issue in Astak CM-818T3 2.4GHz wireless security surveillance cameras. A remote attacker who can reach the vulnerable camera management endpoint may be able to download a compressed configuration backup that can contain administrator credentials and sensitive device settings.
Executive priority
Treat as a high-priority remediation item for any exposed Astak CM-818T3 cameras because the issue can disclose administrative credentials without authentication. Immediate priority should be reducing network exposure and verifying vendor remediation availability.
Technical view
The source bundle describes an authentication/authorization bypass affecting the Astak CM-818T3 camera backup functionality. The vulnerable backup CGI endpoint can disclose the device configuration without requiring login. The reported CVSS v4.0 score is 8.7, with network attack vector, low complexity, no privileges, no user interaction, and high impact to confidentiality. The listed CWE is CWE-306: Missing Authentication for Critical Function.
Likely exposure
Risk is highest for Astak CM-818T3 cameras with their web management interface reachable from the internet or untrusted networks. Internal-only cameras are still exposed to attackers with network access. The source bundle lists affected version "0" and default affected status as unknown, so asset validation should focus on confirmed device model and management interface exposure rather than assuming broader product impact.
Exploitation context
The bundle includes a Packet Storm reference tagged as exploit and a VulnCheck advisory, indicating public exploit information exists. KEV is false in the supplied data, and the bundle does not state active exploitation in the wild, so active exploitation is not confirmed from these sources.
Researcher notes
Do not infer impact beyond the Astak CM-818T3 2.4GHz Wireless Security Surveillance Camera described in the source bundle. The bundle does not provide confirmed fixed versions or vendor patch details. CVE metadata shows publication on 2025-11-26 and update on 2025-11-28 despite the CVE identifier year being 2020.
Mitigation direction
- Check Astak or other authoritative vendor guidance for firmware updates, configuration changes, or product support status; the supplied bundle does not include patch evidence.
- Remove affected camera management interfaces from direct internet exposure.
- Restrict access to trusted administrative networks using firewall rules, VPN, or equivalent network controls.
- Rotate camera administrator credentials and any other credentials or secrets that may have been stored in exposed configuration backups.
- Review camera configuration for unauthorized changes if exposure is suspected.
- Consider replacing or decommissioning affected devices if no supported vendor fix is available.
Validation and detection
- Inventory cameras and confirm whether any Astak CM-818T3 devices are present.
- Determine whether the camera web management interface is reachable from the internet or other untrusted networks.
- Confirm that configuration backup functionality is either patched, requires authentication, or is blocked by network controls.
- Review credential stores and downstream systems for passwords or secrets that may have been reused from affected camera configurations.
- Document findings, exposure status, mitigations applied, and any remaining vendor guidance gaps.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2020-36873 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://packetstorm.news/files/id/156532/CVE reference · exploit
- https://www.vulncheck.com/advisories/astak-cm818t3-unauthenticated-config-disclosureCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.