Microsoft Powershell
Recent Microsoft Powershell Security Advisories
| Advisory | Title | Published |
|---|---|---|
| CVE-2023-36013 | PowerShell Information Disclosure Vulnerability | November 17, 2023 |
| CVE-2022-41076 | PowerShell Remote Code Execution Vulnerability | December 13, 2022 |
| CVE-2022-26788 | PowerShell Elevation of Privilege Vulnerability | April 12, 2022 |
| CVE-2021-43896 | Microsoft PowerShell Spoofing Vulnerability | December 14, 2021 |
By the Year
In 2024 there have been 1 vulnerability in Microsoft Powershell with an average score of 9.8 out of ten. Last year Powershell had 3 security vulnerabilities published. At the current rates, it appears that the number of vulnerabilities last year and this year may equal out. However, the average CVE base score of the vulnerabilities in 2024 is greater by 3.17.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2024 | 1 | 9.80 |
| 2023 | 3 | 6.63 |
| 2022 | 6 | 7.30 |
| 2021 | 2 | 5.60 |
| 2020 | 3 | 6.90 |
| 2019 | 0 | 0.00 |
| 2018 | 0 | 0.00 |
It may take a day or so for new Powershell vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Microsoft Powershell Security Vulnerabilities
NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
CVE-2024-0057
9.8 - Critical
- January 09, 2024
NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such
CVE-2023-48795
5.9 - Medium
- December 18, 2023
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
Improper Validation of Integrity Check Value
PowerShell Information Disclosure Vulnerability
CVE-2023-36013
6.5 - Medium
- November 20, 2023
PowerShell Information Disclosure Vulnerability
Exposure of Resource to Wrong Sphere
.NET Denial of Service Vulnerability
CVE-2023-21538
7.5 - High
- January 10, 2023
.NET Denial of Service Vulnerability
Windows Graphics Component Elevation of Privilege Vulnerability
CVE-2022-41121
7.8 - High
- December 13, 2022
Windows Graphics Component Elevation of Privilege Vulnerability
PowerShell Remote Code Execution Vulnerability
CVE-2022-41076
8.5 - High
- December 13, 2022
PowerShell Remote Code Execution Vulnerability
.NET Spoofing Vulnerability
CVE-2022-34716
5.9 - Medium
- August 09, 2022
.NET Spoofing Vulnerability
.NET and Visual Studio Denial of Service Vulnerability
CVE-2022-23267
7.5 - High
- May 10, 2022
.NET and Visual Studio Denial of Service Vulnerability
PowerShell Elevation of Privilege Vulnerability
CVE-2022-26788
7.8 - High
- April 15, 2022
PowerShell Elevation of Privilege Vulnerability
.NET and Visual Studio Remote Code Execution Vulnerability
CVE-2022-24512
6.3 - Medium
- March 09, 2022
.NET and Visual Studio Remote Code Execution Vulnerability
Microsoft PowerShell Spoofing Vulnerability
CVE-2021-43896
5.5 - Medium
- December 15, 2021
Microsoft PowerShell Spoofing Vulnerability
.NET Core and Visual Studio Information Disclosure Vulnerability
CVE-2021-41355
5.7 - Medium
- October 13, 2021
.NET Core and Visual Studio Information Disclosure Vulnerability
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash
CVE-2020-8927
6.5 - Medium
- September 15, 2020
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
Classic Buffer Overflow
<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could
CVE-2020-0951
6.7 - Medium
- September 11, 2020
<p>A security feature bypass vulnerability exists in Windows Defender Application Control (WDAC) which could allow an attacker to bypass WDAC enforcement. An attacker who successfully exploited this vulnerability could execute PowerShell commands that would be blocked by WDAC.</p> <p>To exploit the vulnerability, an attacker need administrator access on a local machine where PowerShell is running. The attacker could then connect to a PowerShell session and send commands to execute arbitrary code.</p> <p>The update addresses the vulnerability by correcting how PowerShell commands are validated when WDAC protection is enabled.</p>
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests
CVE-2020-1108
7.5 - High
- May 21, 2020
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
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