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CVE-2020-25673

A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system.
An official patch is available. Apply the patch as soon as possible.
5.5
CVSS
4.7
ShadowTrackr
NO
CISA KEV
-
NCSC.nl
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch

Change Log
DateSourceChangesScore
2026-07-21PoCE: U→P1.9 → 4.7
2026-07-21nvdAV: P→L, AC: H→L, PR: H→L, UI: A→N, VA: N→H0.0 → 1.9
2026-07-21nvdpatch: Unavailable→Official Patch0.0 → 0.0
2026-07-21cve.orginitial, patch: Unavailable0.0
References: CVE.org · NVD · PoC

Affected Software
VendorProductVersion
fedoraprojectfedora32
fedoraprojectfedora33
fedoraprojectfedora34
linuxlinux_kernel< 5.3.18
n/aLinux KernelAll
netappactive_iq_unified_managerAll versions
netappcloud_backupAll versions
netapph300e_firmwareAll versions
netapph300s_firmwareAll versions
netapph410c_firmwareAll versions
netapph410s_firmwareAll versions
netapph500e_firmwareAll versions
netapph500s_firmwareAll versions
netapph700e_firmwareAll versions
netapph700s_firmwareAll versions
netappsolidfire_baseboard_management_controller_firmwareAll versions
Published: 2021-05-26