Vulnerability Monitor

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CVE-2021-29998


An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.


Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 71 products from windriver, from siemens, from siemens and 68 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-04-13T17:15:12.310

Last Modified

2024-11-21T06:02:08.550

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System windriver vxworks < 6.5 Yes
Operating System siemens ruggedcom_win_subscriber_station_firmware * Yes
Hardware siemens ruggedcom_win_subscriber_station - No
Operating System siemens scalance_x200-4_p_irt_firmware * Yes
Hardware siemens scalance_x200-4_p_irt - No
Operating System siemens scalance_x201-3p_irt_firmware * Yes
Hardware siemens scalance_x201-3p_irt - No
Operating System siemens scalance_x201-3p_irt_pro_firmware * Yes
Hardware siemens scalance_x201-3p_irt_pro - No
Operating System siemens scalance_x202-2_irt_firmware * Yes
Hardware siemens scalance_x202-2_irt - No
Operating System siemens scalance_x202-2p_irt_firmware * Yes
Hardware siemens scalance_x202-2p_irt - No
Operating System siemens scalance_x202-2p_irt_pro_firmware * Yes
Hardware siemens scalance_x202-2p_irt_pro - No
Operating System siemens scalance_x204_irt_firmware * Yes
Hardware siemens scalance_x204_irt - No
Operating System siemens scalance_x204_irt_pro_firmware * Yes
Hardware siemens scalance_x204_irt_pro - No
Operating System siemens scalance_x204-2_firmware * Yes
Hardware siemens scalance_x204-2 - No
Operating System siemens scalance_x204-2fm_firmware * Yes
Hardware siemens scalance_x204-2fm - No
Operating System siemens scalance_x204-2ld_firmware * Yes
Hardware siemens scalance_x204-2ld - No
Operating System siemens scalance_x204-2ld_ts_firmware * Yes
Hardware siemens scalance_x204-2ld_ts - No
Operating System siemens scalance_x204-2ts_firmware * Yes
Hardware siemens scalance_x204-2ts - No
Operating System siemens scalance_x206-1_firmware * Yes
Hardware siemens scalance_x206-1 - No
Operating System siemens scalance_x206-1ld_firmware * Yes
Hardware siemens scalance_x206-1ld - No
Operating System siemens scalance_x208_firmware * Yes
Hardware siemens scalance_x208 - No
Operating System siemens scalance_x208_pro_firmware * Yes
Hardware siemens scalance_x208_pro - No
Operating System siemens scalance_x212-2_firmware * Yes
Hardware siemens scalance_x212-2 - No
Operating System siemens scalance_x212-2ld_firmware * Yes
Hardware siemens scalance_x212-2ld - No
Operating System siemens scalance_x216_firmware * Yes
Hardware siemens scalance_x216 - No
Operating System siemens scalance_x224_firmware * Yes
Hardware siemens scalance_x224 - No
Operating System siemens scalance_x300_firmware * Yes
Hardware siemens scalance_x300 - No
Operating System siemens scalance_x408_firmware * Yes
Hardware siemens scalance_x408 - No
Operating System siemens scalance_xf201-3p_irt_firmware * Yes
Hardware siemens scalance_xf201-3p_irt - No
Operating System siemens scalance_xf202-2p_irt_firmware * Yes
Hardware siemens scalance_xf202-2p_irt - No
Operating System siemens scalance_xf204_firmware * Yes
Hardware siemens scalance_xf204 - No
Operating System siemens scalance_xf204_irt_firmware * Yes
Hardware siemens scalance_xf204_irt - No
Operating System siemens scalance_xf204-2_firmware * Yes
Hardware siemens scalance_xf204-2 - No
Operating System siemens scalance_xf204-2ba_irt_firmware * Yes
Hardware siemens scalance_xf204-2ba_irt - No
Operating System siemens scalance_xf206-1_firmware * Yes
Hardware siemens scalance_xf206-1 - No
Operating System siemens scalance_xf208_firmware * Yes
Hardware siemens scalance_xf208 - No
Operating System siemens simatic_rf_181_eip_firmware * Yes
Hardware siemens simatic_rf_181_eip - No
Operating System siemens simatic_rf_182c_firmware * Yes
Hardware siemens simatic_rf_182c - No
Operating System siemens sinamics_perfect_harmony_gh180_firmware < 2022 Yes
Hardware siemens sinamics_perfect_harmony_gh180 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For windriver's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.