CVE Tools
Sign in

CVE-2022-41716

Unsanitized NUL in environment variables on Windows in syscall and os/exec

Published: Nov 2, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUNVD-CWE-Other
7.5HIGH
NVD MITRE
EPSS Score
0.8%
Top 47.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Due to unsanitized NUL values, attackers may be able to maliciously set environment variables on Windows. In syscall.StartProcess and os/exec.Cmd, invalid environment variable values containing NUL values are not properly checked for. A malicious environment variable value can exploit this behavior to set a value for a different environment variable. For example, the environment variable string "A=B\x00C=D" sets the variables "A=B" and "C=D".

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

Go standard library
oss-project·USaka golang standard library, net/http, crypto/x509, html/template
syscallLibraryLibrary
OSS Libraries / generic-library
os/execLibraryLibrary
OSS Libraries / generic-library
golang
oss-project·US
go
OSS Libraries
The Go Project
oss-projectaka go, golang-google-protobuf, crypto
Go
OSS Libraries

Exploitability

Official Patch Available
Is your org exposed to CVE-2022-41716?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://go.dev/cl/446916
go.dev
https://go.dev/issue/56284
go.dev
https://groups.google.com/g/golang-announce/c/mbHY1UY3BaM/m/hSpmRzk-AgAJ
groups.google.com
and 4 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-41716 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows