Search/CVE-2021-45488
● CVE — High

CVE-2021-45488

VendornetbsdProductnetbsdDiscoveredDec 25, 2021UpdatedNov 21, 2024

In NetBSD through 9.2, there is an information leak in the TCP ISN (ISS) generation algorithm.

View graph Watch Export
CVSS v3.1
7.5 HIGH
EPSS
1.00%
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 → Oct 22, 2026
▲ 0.03pp
0.96% → 1.00% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityNONE
AvailabilityNONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Connections
2 relationships
Timeline
disclosure → media coverage
Dec 25, 2021
Disclosure — published as a CVE record. · last revised by NVD Nov 21, 2024