CVE-2025-21705
mptcp: handle fastopen disconnect correctly
02 Description
mptcp: handle fastopen disconnect correctly
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
- 0.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 12.3% 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 2026-10-15.
- Red Hat severity
- Low. 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
- 2025-02-27 02:07Z1 YR AGO
- Last updated
- 2026-10-15 01:03Z14 DAYS AGO
- Reserved
- 2024-12-29
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.2
- Document digest
- f6cc3efb3cf87cd6180abe6b973d74ecac1b24ec73f0de5e35f679d6b3dae212
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/73e268b4be27b36ae68ea10755cb003f43b38884
- git.kernel.orghttps://git.kernel.org/stable/c/0263fb2e7b7b88075a5d86e74c4384ee4400828d
- git.kernel.orghttps://git.kernel.org/stable/c/84ac44d9fed3a56440971cbd7600a02b70b5b32a
- git.kernel.orghttps://git.kernel.org/stable/c/6ec806762318a4adde0ea63342d42d0feae95079
- git.kernel.orghttps://git.kernel.org/stable/c/619af16b3b57a3a4ee50b9a30add9ff155541e71
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-457936.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-784472.html
07 Fixed in
Debian 12
- linux Fixed in 6.1.129-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.12.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.12.13-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop No fix yet
- linux-gkeop-5.15 No fix yet
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-allwinner-5.19 No fix yet
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-aws-6.5 No fix yet
- linux-aws-6.8 Fixed in 6.8.0-1032.34~22.04.1
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-6.5 No fix yet
- linux-azure-6.8 Fixed in 6.8.0-1034.39~22.04.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gcp-6.5 No fix yet
- linux-gcp-6.8 Fixed in 6.8.0-1033.35~22.04.1
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-hwe-6.5 No fix yet
- linux-hwe-6.8 Fixed in 6.8.0-64.67~22.04.1
- linux-ibm-6.8 Fixed in 6.8.0-1029.29~22.04.1
- linux-intel-iot-realtime No fix yet
- linux-lowlatency-hwe-5.19 No fix yet
- linux-lowlatency-hwe-6.2 No fix yet
- linux-lowlatency-hwe-6.5 No fix yet
- linux-lowlatency-hwe-6.8 Fixed in 6.8.0-64.67.1~22.04.1
- linux-nvidia-6.2 No fix yet
- linux-nvidia-6.5 No fix yet
- linux-nvidia-6.8 Fixed in 6.8.0-1031.34~22.04.1
- linux-oem-5.17 No fix yet
- linux-oem-6.0 No fix yet
- linux-oem-6.1 No fix yet
- linux-oem-6.5 No fix yet
- linux-oracle-6.5 No fix yet
- linux-oracle-6.8 Fixed in 6.8.0-1029.30~22.04.1
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-5.19 No fix yet
- linux-riscv-6.5 No fix yet
- linux-riscv-6.8 Fixed in 6.8.0-64.67~22.04.1
- linux-starfive-5.19 No fix yet
2 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux Fixed in 6.8.0-64.67
- linux-aws Fixed in 6.8.0-1032.34
- linux-azure Fixed in 6.8.0-1034.39
- linux-azure-6.11 Fixed in 6.11.0-1015.15~24.04.1
- linux-azure-nvidia Fixed in 6.8.0-1022.23
- linux-gcp Fixed in 6.8.0-1033.35
- linux-gcp-6.11 Fixed in 6.11.0-1015.15~24.04.1
- linux-gke Fixed in 6.8.0-1028.32
- linux-gkeop Fixed in 6.8.0-1015.17
- linux-hwe-6.11 Fixed in 6.11.0-26.26~24.04.1
- linux-ibm Fixed in 6.8.0-1029.29
- linux-lowlatency Fixed in 6.8.0-64.67.1
- linux-lowlatency-hwe-6.11 Fixed in 6.11.0-1014.15~24.04.1
- linux-nvidia Fixed in 6.8.0-1031.34
- linux-nvidia-6.11 Fixed in 6.11.0-1010.10
- linux-nvidia-lowlatency Fixed in 6.8.0-1031.34.1
- linux-nvidia-tegra Fixed in 6.8.0-1008.8
- linux-oem-6.11 Fixed in 6.11.0-1022.22
- linux-oem-6.8 Fixed in 6.8.0-1031.31
- linux-oracle Fixed in 6.8.0-1029.30
- linux-raspi Fixed in 6.8.0-1031.35
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-xilinx Fixed in 6.8.0-1017.18
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 24.04 LTS
- linux-fips Fixed in 6.8.0-78.78+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-realtime-6.8 Fixed in 6.8.1-1025.26~22.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 24.04 LTS
- linux-raspi-realtime Fixed in 6.8.0-2026.27Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 6.8.1-1025.26Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.