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CVE-2021-45485

Published: Dec 25, 2021Updated: Aug 5, 2026 Sources: CVE List NVD BDUCWE-327
7.5HIGH
NVD MITRE
EPSS Score
3.6%
Top 11.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-327

Affected Products

netapp
commercial·US
e-series santricity os controller
Hardware Firmware
solidfire\, enterprise sds \& hci storage node
Hardware Firmware
solidfire \& hci management node
Hardware Firmware
brocade fabric operating system firmware
Hardware Firmware
all flash fabric-attached storage 8300 firmware
Hardware Firmware
fabric-attached storage 8300 firmware
Hardware Firmware
all flash fabric-attached storage 8700 firmware
Hardware Firmware
fabric-attached storage 8700 firmware
Hardware Firmware
oracle
commercial·USaka oracle corp.
communications cloud native core binding support function
Communications
communications cloud native core network exposure functionOn-premWeb App
Communications / messaging-chat
communications cloud native core policyOn-premDatabase
Databases / cache-message-queue
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
ООО "Открытая мобильная платформа"
commercial·RU
ОС АврораOn-prem
Operating Systems / mobile-os
Сообщество свободного программного обеспечения
oss-projectaka fsf
LinuxOn-premOS
Operating Systems / linux-distro
linux
oss-projectaka the linux kernel
linux kernelOn-premOS
Operating Systems
and 15 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-45485?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://arxiv.org/pdf/2112.09604.pdf
arxiv.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
cdn.kernel.org
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45485
cve.mitre.org
and 26 more references View all →

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