CVE-2021-42542
Emerson WirelessHART Gateway
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure.
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 directory traversal due to mishandling of provided backup folder structure.
- Record
CVE-2021-42542- 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-22
- Updated
- 2026-11-02
EUVDEUVD-2021-29511
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure.
- Record
EUVD-2021-29511- 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-rmf5-vmvg-379x No score
The affected product is vulnerable to directory traversal due to mishandling of provided backup...
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure.
- Record
GHSA-rmf5-vmvg-379x- Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
The affected product is vulnerable to directory traversal due to mishandling of provided backup folder structure.
- Record
CVE-2021-42542- 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-22
- 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-2021-42542 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 1.48%, the 74th percentile. No source names a fixed version.