01 Record

CVE-2026-31469

virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false

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

virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.14% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 3.4% 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 2026-07-14.
Red Hat severity: Moderate. 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

2026-04-22 13:53Z4 MO AGO

Last updated

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

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-416Use After FreeVariant
CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

f52b41222feaee7fc74283d6cd5d77fef19ab9d2ebdffebb02848854bf986095

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < be0e63f3b97bbaf453c542e8a15ba2a536e2ac01, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < c1ec36cb3768574b916f20d2d7415fd14fa1bf12, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < 8a4790850e710fd6771e4d2112168ed1dd6c0e54, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < fedd2e1630cac920844997227ccbe7b26a76375a, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < f04733c4dc40c43899c3d1c97afbae5831a3770f, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < 9a18629f2525781f0f3dda7be72b204e4cf77d08, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < 63d45077b97bb0e0fe0c75931acbbca7a47af141, f2fc6a54585a1be6669613a31fbaba2ecbadcd36 to < ba8bda9a0896746053aa97ac6c3e08168729172c, 2.6.26—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/be0e63f3b97bbaf453c542e8a15ba2a536e2ac01
git.kernel.orghttps://git.kernel.org/stable/c/c1ec36cb3768574b916f20d2d7415fd14fa1bf12
git.kernel.orghttps://git.kernel.org/stable/c/8a4790850e710fd6771e4d2112168ed1dd6c0e54
git.kernel.orghttps://git.kernel.org/stable/c/fedd2e1630cac920844997227ccbe7b26a76375a
git.kernel.orghttps://git.kernel.org/stable/c/f04733c4dc40c43899c3d1c97afbae5831a3770f
git.kernel.orghttps://git.kernel.org/stable/c/9a18629f2525781f0f3dda7be72b204e4cf77d08
git.kernel.orghttps://git.kernel.org/stable/c/63d45077b97bb0e0fe0c75931acbbca7a47af141
git.kernel.orghttps://git.kernel.org/stable/c/ba8bda9a0896746053aa97ac6c3e08168729172c
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-31469

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31469

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References