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CVE-2020-35519

An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
7.8
CVSS
6.4
ShadowTrackr
NO
CISA KEV
-
NCSC.nl
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusUnavailable

Change Log
DateSourceChangesScore
2026-07-21PoCE: U→P4.4 → 6.4
2026-07-21nvdAV: P→L, AC: H→L, PR: H→L, UI: A→N, VC: N→H, VI: N→H, VA: N→H0.0 → 4.4
2026-07-21cve.orginitial, patch: Unavailable0.0

Affected Software
VendorProductVersion
linuxlinux_kernel≥ 4.5, < 4.9.248
linuxlinux_kernel≥ 2.6.12, < 4.4.248
linuxlinux_kernel≥ 4.10, < 4.14.211
linuxlinux_kernel≥ 4.15, < 4.19.162
linuxlinux_kernel≥ 4.20, < 5.4.82
linuxlinux_kernel≥ 5.5, < 5.9.13
n/akernelv5.12-rc5
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: 2021-05-06