CVE-2021-42539
Emerson WirelessHART Gateway
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
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 missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
- Record
CVE-2021-42539- 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-306
- Updated
- 2026-11-02
EUVDEUVD-2021-29508
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
- Record
EUVD-2021-29508- 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-m82f-xpch-cx55 No score
The affected product is vulnerable to a missing permission validation on system backup restore,...
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
- Record
GHSA-m82f-xpch-cx55- Weakness
- CWE-306
- Updated
- 2026-11-02
NVD
The affected product is vulnerable to a missing permission validation on system backup restore, which could lead to account take over and unapproved settings change.
- Record
CVE-2021-42539- 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
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-306
- 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-2021-42539 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 0.79%, the 56th percentile. No source names a fixed version.