CVE-2021-29998
CRITICAL
Published Apr 13, 20215y ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Apr 13, 2021 5y ago
Last Modified Jun 17, 2026 2w ago
Description
An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 71
| Vendor | Product | Version | Range |
|---|---|---|---|
| windriver | vxworks | * | <6.5 |
| siemens | ruggedcom_win_subscriber_station_firmware | * | any |
| siemens | ruggedcom_win_subscriber_station | * | any |
| siemens | scalance_x200-4_p_irt_firmware | * | any |
| siemens | scalance_x200-4_p_irt | * | any |
| siemens | scalance_x201-3p_irt_firmware | * | any |
| siemens | scalance_x201-3p_irt | * | any |
| siemens | scalance_x201-3p_irt_pro_firmware | * | any |
| siemens | scalance_x201-3p_irt_pro | * | any |
| siemens | scalance_x202-2_irt_firmware | * | any |
| siemens | scalance_x202-2_irt | * | any |
| siemens | scalance_x202-2p_irt_firmware | * | any |
| siemens | scalance_x202-2p_irt | * | any |
| siemens | scalance_x202-2p_irt_pro_firmware | * | any |
| siemens | scalance_x202-2p_irt_pro | * | any |
| siemens | scalance_x204_irt_firmware | * | any |
| siemens | scalance_x204_irt | * | any |
| siemens | scalance_x204_irt_pro_firmware | * | any |
| siemens | scalance_x204_irt_pro | * | any |
| siemens | scalance_x204-2_firmware | * | any |
| siemens | scalance_x204-2 | * | any |
| siemens | scalance_x204-2fm_firmware | * | any |
| siemens | scalance_x204-2fm | * | any |
| siemens | scalance_x204-2ld_firmware | * | any |
| siemens | scalance_x204-2ld | * | any |
| siemens | scalance_x204-2ld_ts_firmware | * | any |
| siemens | scalance_x204-2ld_ts | * | any |
| siemens | scalance_x204-2ts_firmware | * | any |
| siemens | scalance_x204-2ts | * | any |
| siemens | scalance_x206-1_firmware | * | any |
| siemens | scalance_x206-1 | * | any |
| siemens | scalance_x206-1ld_firmware | * | any |
| siemens | scalance_x206-1ld | * | any |
| siemens | scalance_x208_firmware | * | any |
| siemens | scalance_x208 | * | any |
| siemens | scalance_x208_pro_firmware | * | any |
| siemens | scalance_x208_pro | * | any |
| siemens | scalance_x212-2_firmware | * | any |
| siemens | scalance_x212-2 | * | any |
| siemens | scalance_x212-2ld_firmware | * | any |
| siemens | scalance_x212-2ld | * | any |
| siemens | scalance_x216_firmware | * | any |
| siemens | scalance_x216 | * | any |
| siemens | scalance_x224_firmware | * | any |
| siemens | scalance_x224 | * | any |
| siemens | scalance_x300_firmware | * | any |
| siemens | scalance_x300 | * | any |
| siemens | scalance_x408_firmware | * | any |
| siemens | scalance_x408 | * | any |
| siemens | scalance_xf201-3p_irt_firmware | * | any |
| siemens | scalance_xf201-3p_irt | * | any |
| siemens | scalance_xf202-2p_irt_firmware | * | any |
| siemens | scalance_xf202-2p_irt | * | any |
| siemens | scalance_xf204_firmware | * | any |
| siemens | scalance_xf204 | * | any |
| siemens | scalance_xf204_irt_firmware | * | any |
| siemens | scalance_xf204_irt | * | any |
| siemens | scalance_xf204-2_firmware | * | any |
| siemens | scalance_xf204-2 | * | any |
| siemens | scalance_xf204-2ba_irt_firmware | * | any |
| siemens | scalance_xf204-2ba_irt | * | any |
| siemens | scalance_xf206-1_firmware | * | any |
| siemens | scalance_xf206-1 | * | any |
| siemens | scalance_xf208_firmware | * | any |
| siemens | scalance_xf208 | * | any |
| siemens | simatic_rf_181_eip_firmware | * | any |
| siemens | simatic_rf_181_eip | * | any |
| siemens | simatic_rf_182c_firmware | * | any |
| siemens | simatic_rf_182c | * | any |
| siemens | sinamics_perfect_harmony_gh180_firmware | * | ≥2015 – <2022 |
| siemens | sinamics_perfect_harmony_gh180 | * | any |
References 4
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf
- support2.windriver.com https://support2.windriver.com/index.php?page=security-notices
- us-cert.cisa.gov https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.