01 Record

CVE-2025-38732

netfilter: nf_reject: don't leak dst refcount for loopback packets

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

netfilter: nf_reject: don't leak dst refcount for loopback packets

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: 0.17% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 6.7% 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 2026-07-14.
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

2025-09-05 17:20Z12 MO AGO

Last updated

2026-07-14 12:42Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

23e3de1ab46940e25f40aaa73ce42ab7b9238acc6014abc89f83f29fa695b321

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < 7b8b503c06274ef3c6c1a107743f1ec0d0a53ef8, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < 82ef97abf22790182f7d433c74960dfd61b99c33, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < b7a885ba25960c91db237c3f83b4285156789bce, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < a0a3ace2a57887dac1e7c9a724846040c3e31868, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < 51e8531371f90bee742c63775c9a568e5d6bf3c5, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < b32e1590a8d22cf7d7f965e46d5576051acf8e42, f53b9b0bdc59c0823679f2e3214e0d538f5951b9 to < 91a79b792204313153e1bdbbe5acbfc28903b3a5, 5.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7b8b503c06274ef3c6c1a107743f1ec0d0a53ef8
git.kernel.orghttps://git.kernel.org/stable/c/82ef97abf22790182f7d433c74960dfd61b99c33
git.kernel.orghttps://git.kernel.org/stable/c/b7a885ba25960c91db237c3f83b4285156789bce
git.kernel.orghttps://git.kernel.org/stable/c/a0a3ace2a57887dac1e7c9a724846040c3e31868
git.kernel.orghttps://git.kernel.org/stable/c/51e8531371f90bee742c63775c9a568e5d6bf3c5
git.kernel.orghttps://git.kernel.org/stable/c/b32e1590a8d22cf7d7f965e46d5576051acf8e42
git.kernel.orghttps://git.kernel.org/stable/c/91a79b792204313153e1bdbbe5acbfc28903b3a5
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2025-38732

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-38732

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References