CVE Tools
Sign in

CVE-2021-29999

Published: Apr 13, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-787
9.8CRITICAL
NVD MITRE
EPSS Score
1.8%
Top 24.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server.

No summary for this CVE yet.

CVSS Vector Breakdown

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

Weaknesses

CWE-787

Affected Products

Wind River Systems, Inc.
commercialaka windriver, bsd os, linux, bsdos, vxworks, bdos, wind river linux
VxWorksEmbedded
Operating Systems / rtos-embedded-os
and 2 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-29999?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://support2.windriver.com/index.php?page=security-notices
support2.windriver.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-058-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-25-058-01
cisa.gov
and 13 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-29999 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