In the Linux kernel, the following vulnerability has been resolved:

ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()

ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers.
Let's recompute nh pointer to make sure any change won't mess things up.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0021.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < b3ac54e5c905f86d22b502eacb5686a282c5659f
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 645b99b1a185c91a79bdac4c5de0f91b212d64f0
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 9e883eaa878f4337b5873c706efb5a192364ed18
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < bddaa4dfc7f36e1ee343a0622f69288af2b9ace9
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 72af7beae774e46ed543f3f2f267bf0a141bfcdd
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < c512e1c819dfbf6ae95ee7a44b65b9ad98979157
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 2b56bbd928c030894c270cd33d60286326919458
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < d47548a36639095939f4747d4c43f2271366f565
Linux Linux affected
Version Status Constraints
2.6.12 affected —
0 unaffected < 2.6.12
5.10.259 unaffected ≤ 5.10.*
5.15.210 unaffected ≤ 5.15.*
6.1.176 unaffected ≤ 6.1.*
6.6.143 unaffected ≤ 6.6.*
6.12.93 unaffected ≤ 6.12.*
6.18.35 unaffected ≤ 6.18.*
7.0.12 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Linux Subscribe
Linux Kernel Subscribe

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/2b56bbd928c030894c270cd33d60286326919458 cve-icon
https://git.kernel.org/stable/c/645b99b1a185c91a79bdac4c5de0f91b212d64f0 cve-icon
https://git.kernel.org/stable/c/72af7beae774e46ed543f3f2f267bf0a141bfcdd cve-icon
https://git.kernel.org/stable/c/9e883eaa878f4337b5873c706efb5a192364ed18 cve-icon
https://git.kernel.org/stable/c/b3ac54e5c905f86d22b502eacb5686a282c5659f cve-icon
https://git.kernel.org/stable/c/bddaa4dfc7f36e1ee343a0622f69288af2b9ace9 cve-icon
https://git.kernel.org/stable/c/c512e1c819dfbf6ae95ee7a44b65b9ad98979157 cve-icon
https://git.kernel.org/stable/c/d47548a36639095939f4747d4c43f2271366f565 cve-icon
History

Mon, 20 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Sun, 19 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() ipv6_hop_jumbo() calls pskb_trim_rcsum(), which can change skb pointers. Let's recompute nh pointer to make sure any change won't mess things up.
Title ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-20T13:41:34.095Z

Reserved: 2026-07-19T07:54:57.021Z

Link: CVE-2026-63924

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-21T10:30:04Z

Weaknesses

No weakness.