CVE-2021-42536
Emerson WirelessHART Gateway
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Emerson WirelessHART Gateway
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.
- Record
CVE-2021-42536- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2021-29505
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.
- Record
EUVD-2021-29505- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5r3g-xh79-r442 No score
The affected product is vulnerable to a disclosure of peer username and password by allowing all...
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.
- Record
GHSA-5r3g-xh79-r442- Weakness
- CWE-200, CWE-668
- Updated
- 2026-11-02
NVD
The affected product is vulnerable to a disclosure of peer username and password by allowing all users access to read global variables.
- Record
CVE-2021-42536- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-200, CWE-668
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42536 is a high vulnerability (CVSS 8.0) in Emerson Wirelesshart Gateway, published October 22, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. No source names a fixed version.