01 Record

CVE-2026-46331

net/sched: fix pedit partial COW leading to page cache corruption

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/sched: fix pedit partial COW leading to page cache corruption

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
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

0.58% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 45.4% 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

Modified. NVD last modified this record on 2026-09-02.

Red Hat severity

Important. 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

2026-06-16 06:26Z2 MO AGO

Last updated

2026-09-02 12:04Z1 DAY AGO

Reserved

2026-05-13

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-190Integer Overflow or WraparoundBase
CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

7fee4bb2ffb411ca2752011fd932291c562b08e7b4ace19252f75aba85b02077

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxabe35bf3be51482593076d516a680d79e5fbc8e1 to < 544d857b42a1734b923040e13aa61a6fd4746cf2, b773640d5bb9e2acfd91e2695717af04d47aa116 to < d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc, 8b796475fd7882663a870456466a4fb315cc1bd6 to < a071e057518decc5e3bec89855758f5f8786f2c5, 8b796475fd7882663a870456466a4fb315cc1bd6 to < b685d6ef6f07a3b5ce814565a25f39f2157538a5, 8b796475fd7882663a870456466a4fb315cc1bd6 to < 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b, 8b796475fd7882663a870456466a4fb315cc1bd6 to < b198ed4e52580a7238c7c7082f03906f8b310313, 8b796475fd7882663a870456466a4fb315cc1bd6 to < 3dee9d0c198faeb95d052c1b94c2958751a28512, 8b796475fd7882663a870456466a4fb315cc1bd6 to < 899ee91156e57784090c5565e4f31bd7dbffbc5a, d0c38a914b0c4c21d553da801003d36979016726, 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1, c19cc520b3d69904e9518d401ad0df7f4702aca0, 5.10.117 to < 5.10.260, 5.15.41 to < 5.15.211, 4.19.244 to < 4.20, 5.4.195 to < 5.5, 5.17.9 to < 5.18, 5.18—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/544d857b42a1734b923040e13aa61a6fd4746cf2
git.kernel.orghttps://git.kernel.org/stable/c/d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc
git.kernel.orghttps://git.kernel.org/stable/c/a071e057518decc5e3bec89855758f5f8786f2c5
git.kernel.orghttps://git.kernel.org/stable/c/b685d6ef6f07a3b5ce814565a25f39f2157538a5
git.kernel.orghttps://git.kernel.org/stable/c/2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b
git.kernel.orghttps://git.kernel.org/stable/c/b198ed4e52580a7238c7c7082f03906f8b310313
git.kernel.orghttps://git.kernel.org/stable/c/3dee9d0c198faeb95d052c1b94c2958751a28512
git.kernel.orghttps://git.kernel.org/stable/c/899ee91156e57784090c5565e4f31bd7dbffbc5a
github.comhttps://github.com/sgkdev/packet_edit_meme/tree/mainexploit
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-46331vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2479492https://bugzilla.redhat.com/show_bug.cgi?id=2479492issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46331.jsonx_sadp-csaf-vex
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27709vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33666vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:34048vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:40021vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:28887vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:28962vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29080vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:34098vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29856vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29863vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29799vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29833vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:29794vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27731vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27288vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27705vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27713vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27708vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27789vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33225vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27353vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33220vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27707vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27704vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27355vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33219vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33221vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33222vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33223vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33224vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27354vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:27706vendor-advisoryx_refsource_REDHAT

01 Record index

CVE-2026-46331

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-46331

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References