Security readout for executives and security teams
Plain-English summary
This flaw affects a specific Cosori smart air fryer firmware version. A network attacker can send malformed JSON to the device’s configuration server and potentially take control of the device. The cited record rates impact as high across confidentiality, integrity, and availability, but exploitation requires high attack complexity.
Executive priority
Prioritize if affected smart appliances are present on corporate, lab, hospitality, or managed residential networks. If absent, no direct action is needed beyond asset confirmation.
Technical view
CVE-2020-28592 is a heap-based buffer overflow in the configuration server of Cosori Smart 5.8-Quart Air Fryer CS158-AF firmware 1.1.0. The CVSS vector is network reachable, no authentication, no user interaction, high complexity, and high CIA impact. CWE-120 is assigned.
Likely exposure
Exposure is limited to environments using Cosori Smart 5.8-Quart Air Fryer CS158-AF firmware 1.1.0 where the configuration server is reachable over a network.
Exploitation context
The bundle describes remote code execution through a specially crafted JSON object sent as a packet. It does not cite active exploitation, and CISA KEV status is false.
Researcher notes
The public bundle names the vulnerable function area and input class but does not provide patch status or active exploitation evidence. Avoid assuming other Cosori models or firmware versions are affected without vendor confirmation.
Mitigation direction
- Inventory for the affected Cosori CS158-AF firmware 1.1.0 device.
- Check Cosori and Talos guidance for firmware updates or official mitigations.
- Restrict device access to trusted local network segments only.
- Block internet exposure to the device configuration server.
- Replace or remove the device if no supported fix is available.
Validation and detection
- Confirm whether any deployed device matches CS158-AF firmware 1.1.0.
- Verify the device is not reachable from untrusted networks.
- Review firewall rules for unexpected inbound access to the device.
- Check vendor or Talos references for updated remediation details.
- Monitor network telemetry for unusual traffic targeting the device.
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-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-28592 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
- 8.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.1HighVector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1216CVE reference · x_refsource_MISC
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.