01 Record

CVE-2021-47162

tipc: skb_linearize the head skb when reassembling msgs

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

tipc: skb_linearize the head skb when reassembling msgs

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 ImpactpartialSuccessful exploitation gives limited 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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 51.9% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2024-03-25 09:16Z2 YR AGO

Last updated

2026-08-05 08:46Z1 MO AGO

Reserved

2024-03-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

9cc7c27f8e65f2401f77364d563adf4962f65da9a88c486b1390d1c94edf4e6c

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < b2c8d28c34b3070407cb1741f9ba3f15d0284b8b, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < 5489f30bb78ff0dafb4229a69632afc2ba20765c, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < 436d650d374329a591c30339a91fa5078052ed1e, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < 4b1761898861117c97066aea6c58f68a7787f0bf, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < 64d17ec9f1ded042c4b188d15734f33486ed9966, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < 6da24cfc83ba4f97ea44fc7ae9999a006101755c, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < ace300eecbccaa698e2b472843c74a5f33f7dce8, 45c8b7b175ceb2d542e0fe15247377bf3bce29ec to < b7df21cf1b79ab7026f545e7bf837bd5750ac026, d45ed6c1ff20d3640a31f03816ca2d48fb7d6f22, c19282fd54a19e4651a4e67836cd842082546677, 4.1.14 to < 4.2, 4.2.7 to < 4.3, 4.3—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b2c8d28c34b3070407cb1741f9ba3f15d0284b8b
git.kernel.orghttps://git.kernel.org/stable/c/5489f30bb78ff0dafb4229a69632afc2ba20765c
git.kernel.orghttps://git.kernel.org/stable/c/436d650d374329a591c30339a91fa5078052ed1e
git.kernel.orghttps://git.kernel.org/stable/c/4b1761898861117c97066aea6c58f68a7787f0bf
git.kernel.orghttps://git.kernel.org/stable/c/64d17ec9f1ded042c4b188d15734f33486ed9966
git.kernel.orghttps://git.kernel.org/stable/c/6da24cfc83ba4f97ea44fc7ae9999a006101755c
git.kernel.orghttps://git.kernel.org/stable/c/ace300eecbccaa698e2b472843c74a5f33f7dce8
git.kernel.orghttps://git.kernel.org/stable/c/b7df21cf1b79ab7026f545e7bf837bd5750ac026

01 Record index

CVE-2021-47162

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47162

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References