Search/CVE-2021-29998
● CVE — Critical

CVE-2021-29998

Vendorsiemens, windriverProductscalance x300 firmware, scalance x408 firmware, vxworks, ruggedcom win subscriber station firmware, scalance x200-4 p irt firmware, scalance x201-3p irt firmware, scalance x201-3p irt pro firmware, scalance x202-2 irt firmware, scalance x202-2p irt firmware, scalance x202-2p irt pro firmware, scalance x204-2 firmware, scalance x204-2fm firmware, scalance x204-2ld firmware, scalance x204-2ld ts firmware, scalance x204-2ts firmware, scalance x204 irt firmware, scalance x204 irt pro firmware, scalance x206-1 firmware, scalance x206-1ld firmware, scalance x208 firmware, scalance x208 pro firmware, scalance x212-2 firmware, scalance x212-2ld firmware, scalance x216 firmware, scalance x224 firmwareDiscoveredApr 13, 2021UpdatedNov 21, 2024

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

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CVSS v3.1
9.8 CRITICAL
EPSS
4.21%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Nov 3, 2026
▲ 1.82pp
2.39% → 4.21% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
26 relationships
Timeline
disclosure → media coverage
Apr 13, 2021
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024