01 Record

CVE-2023-53338

lwt: Fix return values of BPF xmit ops

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

lwt: Fix return values of BPF xmit ops

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 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

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.2% 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 2026-08-04.

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

2025-09-17 14:56Z11 MO AGO

Last updated

2026-08-05 09:13Z1 MO AGO

Reserved

2025-09-16

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
CWE-253Incorrect Check of Function Return ValueBase

Data version

5.2

Document digest

1797b9306db0292897af688dde99b6629643436e189eeba5d31896d0acdb4c77

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < 67f8f2bae8e7ac72e09def2b667e44704c4d1ee1, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < a97f221651fcdc891166e9bc270e3d9bfa5a0080, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < e3f647e4b642f9f6d32795a16f92c116c138d2af, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < 065d5f17096ec9161180e2c890afdff4dc6125f2, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < d68c17402442f5f494a2c3ebde5cb82f6aa9160a, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < 65583f9e070db7bece20710cfa2e3daeb0b831d9, 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 to < 29b22badb7a84b783e3a4fffca16f7768fb31205, 4.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/67f8f2bae8e7ac72e09def2b667e44704c4d1ee1
git.kernel.orghttps://git.kernel.org/stable/c/a97f221651fcdc891166e9bc270e3d9bfa5a0080
git.kernel.orghttps://git.kernel.org/stable/c/e3f647e4b642f9f6d32795a16f92c116c138d2af
git.kernel.orghttps://git.kernel.org/stable/c/065d5f17096ec9161180e2c890afdff4dc6125f2
git.kernel.orghttps://git.kernel.org/stable/c/d68c17402442f5f494a2c3ebde5cb82f6aa9160a
git.kernel.orghttps://git.kernel.org/stable/c/65583f9e070db7bece20710cfa2e3daeb0b831d9
git.kernel.orghttps://git.kernel.org/stable/c/29b22badb7a84b783e3a4fffca16f7768fb31205

01 Record index

CVE-2023-53338

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-53338

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References