CVE-2026-70337
Microsoft PowerShell Remote Code Execution Vulnerability
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft PowerShell Remote Code Execution Vulnerability
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-70337- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-23
- Updated
- 2026-11-02
EUVDEUVD-2026-56768
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-56768- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c9mw-2c7x-gc2r
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute...
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
GHSA-c9mw-2c7x-gc2r- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-23
- Updated
- 2026-11-02
NVD
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-70337- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-23
- Updated
- 2026-11-02
OSVALPINE-CVE-2026-70337
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
ALPINE-CVE-2026-70337- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
OSV
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-70337- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-powershell-2026-70337 No score
Microsoft PowerShell Remote Code Execution Vulnerability
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
- Record
BIT-powershell-2026-70337- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
powershellAlpine:v3.24 |
7.4 up to 7.6.9-r0 | 7.6.9-r0 |
powershellBitnami |
7.4.0 up to 7.4.19, 7.5.0 up to 7.5.10, 7.6.0 up to 7.6.5 | 7.4.197.5.107.6.5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| affected, aliases | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-70337 is a high vulnerability (CVSS 8.8) in Microsoft Powershell, published August 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 61st percentile. Fixed in powershell 7.6.9-r0.