Security readout for executives and security teams
Plain-English summary
CVE-2021-30165 is a hard-coded administrator password issue in EDIMAX IC-3140W network cameras version 3.11. If an attacker obtains the credential from firmware, they may gain privileged control of the camera. The sources do not state a vendor fix or active exploitation.
Executive priority
Treat this as a high-priority IoT exposure where affected cameras may be controllable by unauthorized parties. Prioritize discovery, isolation, and vendor guidance checks before relying on password rotation alone.
Technical view
The CVE describes CWE-798 hard-coded credentials in the default administrator account for EDIMAX IC-3140W firmware version 3.11. CVSS 3.1 is 7.5 high, with adjacent attack vector, high complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations using EDIMAX IC-3140W cameras on version 3.11, especially where camera administration is reachable from broader internal, guest, or unmanaged adjacent networks.
Exploitation context
The source says remote attackers can disassemble firmware to obtain privileged permission and control devices. The bundle marks CISA KEV as false, and no cited source confirms active exploitation.
Researcher notes
Evidence is narrow: one affected product and version are named, with hard-coded default administrator credentials. The supplied sources do not provide patch details, exploit telemetry, affected CPEs, or broader product coverage.
Mitigation direction
- Check EDIMAX and TWCERT guidance for any supported firmware update or workaround.
- Inventory EDIMAX IC-3140W cameras and confirm firmware version.
- Restrict camera administration to trusted management networks only.
- Remove camera access from guest, public, and unmanaged adjacent networks.
- Replace or retire affected devices if no vendor-supported remediation exists.
Validation and detection
- Identify any EDIMAX IC-3140W devices in asset inventory.
- Confirm whether each device runs firmware version 3.11.
- Review network paths that can reach camera management interfaces.
- Verify public or guest networks cannot reach affected cameras.
- Record vendor advisory status and remediation decision for each 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-798: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-30165 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/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:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.twcert.org.tw/tw/cp-132-4670-359c8-1.htmlCVE 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.
Use of Hard-coded Credentials
Use of Hard-coded Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.