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China National Vulnerability DatabaseCNVD-2021-95621HistoryOct 13, 2021 - 12:00 a.m.
Zephyr integer underflow vulnerability
2021-10-1300:00:00
China National Vulnerability Database
www.cnvd.org.cn
11
zephyr
integer underflow
6lowpan
iphc
header
decompression
vulnerability
attackers
out-of-bounds access
pv6 parsing logic
interconnected devices
embedded
real-time operating system
EPSS
0.004
Percentile
75.0%
Zephyr is a small real-time operating system for interconnected, resource-constrained embedded devices. an integer underflow vulnerability in 6LoWPAN IPHC header decompression in Zephyr 2.4.0 and later can be exploited by attackers to cause out-of-bounds access in the Pv6 parsing logic.
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