01 Record

CVE-2025-39673

ppp: fix race conditions in ppp_fill_forward_path

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

ppp: fix race conditions in ppp_fill_forward_path

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: 0.30% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 22.3% of scored records. A rank, not a probability.
NVD base score: 4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-30.
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

2026-08-05 12:04Z1 MO AGO

Reserved

2025-04-16

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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

73f4c2b5aa6de9c93e2bd7a4a9a419460b1867d581a9a85842a935eeb8dbd73d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxf6efc675c9dd8d93f826b79ae7e33e03301db609 to < 9a1969fbffc1f1900d92d7594b1b7d8d72ef3dc7, f6efc675c9dd8d93f826b79ae7e33e03301db609 to < 0f1630be6fcca3f0c63e4b242ad202e5cde28a40, f6efc675c9dd8d93f826b79ae7e33e03301db609 to < ca18d751bcc9faf5b7e82e9fae1223d103928181, f6efc675c9dd8d93f826b79ae7e33e03301db609 to < 94731cc551e29511d85aa8dec61a6c071b1f2430, f6efc675c9dd8d93f826b79ae7e33e03301db609 to < f97f6475fdcb3c28ff3c55cc4b7bde632119ec08, f6efc675c9dd8d93f826b79ae7e33e03301db609 to < 0417adf367a0af11adf7ace849af4638cfb573f7, 5.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9a1969fbffc1f1900d92d7594b1b7d8d72ef3dc7
git.kernel.orghttps://git.kernel.org/stable/c/0f1630be6fcca3f0c63e4b242ad202e5cde28a40
git.kernel.orghttps://git.kernel.org/stable/c/ca18d751bcc9faf5b7e82e9fae1223d103928181
git.kernel.orghttps://git.kernel.org/stable/c/94731cc551e29511d85aa8dec61a6c071b1f2430
git.kernel.orghttps://git.kernel.org/stable/c/f97f6475fdcb3c28ff3c55cc4b7bde632119ec08
git.kernel.orghttps://git.kernel.org/stable/c/0417adf367a0af11adf7ace849af4638cfb573f7
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html

01 Record index

CVE-2025-39673

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-39673

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References