Critical severity9.8NVD Advisory· Published Apr 13, 2021· Updated Jun 17, 2026
CVE-2021-29998
CVE-2021-29998
Description
An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38- cpe:2.3:o:siemens:ruggedcom_win_subscriber_station_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x200-4_p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2fm_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ts_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x206-1_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x208_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x208_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x212-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x216_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x224_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x300_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x408_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf206-1_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf208_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_rf_181_eip_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_rf_182c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:sinamics_perfect_harmony_gh180_firmware:*:*:*:*:*:*:*:*Range: >=2015,<2022
- Wind River/VxWorksdescription
Patches
Vulnerability mechanics
References
4- cert-portal.siemens.com/productcert/pdf/ssa-560465.pdfnvdThird Party Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-910883.pdfnvdThird Party Advisory
- support2.windriver.com/index.phpnvdVendor Advisory
- us-cert.cisa.gov/ics/advisories/icsa-21-194-12nvdThird Party AdvisoryUS Government Resource
News mentions
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