Security readout for executives and security teams
Plain-English summary
CVE-2019-20638 affects NETGEAR MR1100 devices running firmware before 12.06.08.00. The issue can disclose administrative credentials, which could let an attacker take over device management and change security settings. The known evidence points to a high-impact router exposure, but the provided sources do not show active exploitation.
Executive priority
Treat this as a prompt remediation item for any MR1100 used in production, remote work, or executive connectivity. It is high severity because exposed admin credentials can undermine device control, but the provided evidence does not justify claiming active exploitation.
Technical view
The CVE describes administrative credential disclosure on NETGEAR MR1100 firmware before 12.06.08.00. CVSS 3.0 is 7.0 high, with adjacent-network access, low complexity, low privileges, and user interaction required. Confidentiality and integrity impact are high. No CWE is listed in the source bundle.
Likely exposure
Organizations using NETGEAR MR1100 mobile routers or hotspots with firmware older than 12.06.08.00 are the exposed population. Risk is higher where untrusted users can reach the device management network or where these devices support critical remote connectivity.
Exploitation context
The source bundle does not report CISA KEV listing or confirmed active exploitation. The CVSS vector indicates exploitation is not fully remote internet-scale; it requires adjacent network access, some privilege, and user interaction. Credential disclosure still creates serious post-compromise control risk.
Researcher notes
Public detail in the provided bundle is limited. The strongest facts are product, version boundary, credential disclosure impact, vendor advisory, and CVSS vector. Avoid broadening scope beyond MR1100 or claiming exploit availability without additional sourced evidence.
Mitigation direction
- Identify all NETGEAR MR1100 devices in business use.
- Upgrade affected MR1100 firmware to 12.06.08.00 or later.
- Follow the NETGEAR advisory for device-specific update guidance.
- Rotate administrative credentials after updating affected devices.
- Restrict management access to trusted administrators and networks.
Validation and detection
- Check each MR1100 firmware version against 12.06.08.00.
- Confirm affected devices no longer run vulnerable firmware.
- Verify administrative passwords were changed after remediation.
- Review management access exposure from adjacent or guest networks.
- Check device logs for unusual administrative activity where available.
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.
CVE-2019-20638 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:L/C:H/I:H/PR:L/S:U/UI:R
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/AC:L/AV:A/A:L/C:H/I:H/PR:L/S:U/UI:R1.55.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7HighVector: CVSS:3.0/AC:L/AV:A/A:L/C:H/I:H/PR:L/S:U/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061506/Security-Advisory-for-Admin-Credential-Disclosure-on-MR1100-PSV-2019-0008CVE reference · x_refsource_CONFIRM
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.