01 Record

CVE-2021-47010

net: Only allow init netns to set default tcp cong to a restricted algo

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

net: Only allow init netns to set default tcp cong to a restricted algo

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.4% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-02-28 08:13Z2 YR AGO

Last updated

2026-05-11 13:46Z3 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-400Uncontrolled Resource ConsumptionClass
CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

36ac27782b0b6f1eaa48b03b981384d5ec01449f77ed06293b40bdb3ee39f2a1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6670e152447732ba90626f36dfc015a13fbf150e to < 992de06308d9a9584d59b96d294ac676f924e437, 6670e152447732ba90626f36dfc015a13fbf150e to < 9884f745108f7d25b189bbcd6754e284fb29ab68, 6670e152447732ba90626f36dfc015a13fbf150e to < 6c1ea8bee75df8fe2184a50fcd0f70bf82986f42, 6670e152447732ba90626f36dfc015a13fbf150e to < efe1532a6e1a8e3c343d04fff510f0ed80328f9c, 6670e152447732ba90626f36dfc015a13fbf150e to < e7d7bedd507bb732e600403b7a96f9fe48d0ca31, 6670e152447732ba90626f36dfc015a13fbf150e to < 8d432592f30fcc34ef5a10aac4887b4897884493, 4.15—

linuxlinux_kernel6670e1524477 to < 992de06308d9, 6670e1524477 to < 9884f745108f, 6670e1524477 to < 6c1ea8bee75d, 6670e1524477 to < efe1532a6e1a, 6670e1524477 to < e7d7bedd507b, 6670e1524477 to < 8d432592f30f, 4.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/992de06308d9a9584d59b96d294ac676f924e437
git.kernel.orghttps://git.kernel.org/stable/c/9884f745108f7d25b189bbcd6754e284fb29ab68
git.kernel.orghttps://git.kernel.org/stable/c/6c1ea8bee75df8fe2184a50fcd0f70bf82986f42
git.kernel.orghttps://git.kernel.org/stable/c/efe1532a6e1a8e3c343d04fff510f0ed80328f9c
git.kernel.orghttps://git.kernel.org/stable/c/e7d7bedd507bb732e600403b7a96f9fe48d0ca31
git.kernel.orghttps://git.kernel.org/stable/c/8d432592f30fcc34ef5a10aac4887b4897884493

01 Record index

CVE-2021-47010

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47010

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References