01 Record

CVE-2026-31623

net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()

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: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.6% 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 2026-06-17.
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

2026-04-24 14:42Z4 MO AGO

Last updated

2026-06-14 17:43Z2 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

ae5557b6c01b19c4441ebfb71bd87e04fe8236d472a1c2b0149286308e0e8acd

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < 6807ff49bf796b3823b1e29f97b69316a40a9a94, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < 0c5c65a17db729fc63ab656bdaaf0e675a9dbeac, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < 6053620fdbcd89fa7e755644efdaab78e0daaae7, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < d4e1946bea8d6441835eb3fd09b19237ba366a6f, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < a23b1b1aaf41e174181d5853a70e65d4d01e648c, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < c183d5775129a0a7495bd61a6e57ec230dcf01e5, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < ebf75c6301c4972a87542ebf2d994c6391eb5d46, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < 9989938d13cc5ba8447eeed5a61acfcf61bc6801, 87cf65601e1709e57f7e28f0f7b3eb0a992c1782 to < 600dc40554dc5ad1e6f3af51f700228033f43ea7, 2.6.31—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94
git.kernel.orghttps://git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac
git.kernel.orghttps://git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7
git.kernel.orghttps://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f
git.kernel.orghttps://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c
git.kernel.orghttps://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5
git.kernel.orghttps://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46
git.kernel.orghttps://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801
git.kernel.orghttps://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7

01 Record index

CVE-2026-31623

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31623

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References