01 Record

CVE-2025-21683

bpf: Fix bpf_sk_select_reuseport() memory leak

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

bpf: Fix bpf_sk_select_reuseport() memory leak

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 ImpactpartialSuccessful exploitation gives limited 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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.8% 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

2025-01-31 11:25Z1 YR AGO

Last updated

2026-05-12 12:03Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

71d05850111a8399dba322e8e3d8213791b857a5f44d99a94a076af9b551d4f6

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux64d85290d79c0677edb5a8ee2295b36c022fa5df to < bb36838dac7bb334a3f3d7eb29875593ec9473fc, 64d85290d79c0677edb5a8ee2295b36c022fa5df to < 0ab52a8ca6e156a64c51b5e7456cac9a0ebfd9bf, 64d85290d79c0677edb5a8ee2295b36c022fa5df to < d0a3b3d1176d39218b8edb2a2d03164942ab9ccd, 64d85290d79c0677edb5a8ee2295b36c022fa5df to < b02e70be498b138e9c21701c2f33f4018ca7cd5e, 64d85290d79c0677edb5a8ee2295b36c022fa5df to < cccd51dd22574216e64e5d205489e634f86999f3, 64d85290d79c0677edb5a8ee2295b36c022fa5df to < b3af60928ab9129befa65e6df0310d27300942bf, 5.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bb36838dac7bb334a3f3d7eb29875593ec9473fc
git.kernel.orghttps://git.kernel.org/stable/c/0ab52a8ca6e156a64c51b5e7456cac9a0ebfd9bf
git.kernel.orghttps://git.kernel.org/stable/c/d0a3b3d1176d39218b8edb2a2d03164942ab9ccd
git.kernel.orghttps://git.kernel.org/stable/c/b02e70be498b138e9c21701c2f33f4018ca7cd5e
git.kernel.orghttps://git.kernel.org/stable/c/cccd51dd22574216e64e5d205489e634f86999f3
git.kernel.orghttps://git.kernel.org/stable/c/b3af60928ab9129befa65e6df0310d27300942bf
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-265688.html

01 Record index

CVE-2025-21683

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-21683

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References