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CVE-2025-71098

25
FAUCET Score

CVE-2025-71098 addresses a vulnerability in the Linux kernel's ip6_gre module, specifically within the ip6gre_header() function. This flaw arises from the interaction between team/bonding drivers dynamically changing network device headroom and the mld_newpack() function allocating an skb with insufficient reserve/headroom, leading to a kernel crash when an ip6gre device is attached. While no CVSS score is provided, its FAUCET Risk Score of 39/100 suggests a moderate severity, with the potential for denial-of-service due to kernel panics. There is no indication of active exploitation, nor are Metasploit or ExploitDB entries available, although it has garnered significant community discussion with 11 mentions and a single media article.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.7.1, < 5.10.248CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.160CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.120CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.12.64CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 10th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (81)

microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.119.3-3 on Azure Linux 3.0Fixed in: 6.6.121.1-1
microsoftpatch availablevia msrc
Product: 20823-17084Fixed in: 6.6.121.1-1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-6.8 (jammy)Fixed in: 6.8.0-1049.50~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-6.8 (jammy)Fixed in: 6.8.0-1051.51~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (noble)Fixed in: 6.8.0-1052.56
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-6.17 (noble)Fixed in: 6.17.0-1012.12~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-6.17 (noble)Fixed in: 6.17.0-22.22~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-6.17 (noble)Fixed in: 6.17.0-1011.11~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (questing)Fixed in: 6.17.0-1012.12
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (questing)Fixed in: 6.17.0-1011.11
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (noble)Fixed in: 6.8.0-1022.22
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (jammy)Fixed in: 5.15.0-1103.110+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (jammy)Fixed in: 5.15.0-173.183+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (jammy)Fixed in: 5.15.0-1103.112+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-lowlatency (noble)Fixed in: 6.8.0-1051.54.1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-5.15 (focal)Fixed in: 5.15.0-1097.100~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-5.15 (focal)Fixed in: 5.15.0-1055.55~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (jammy)Fixed in: 5.15.0-1103.110
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (jammy)Fixed in: 5.15.0-1103.112
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (jammy)Fixed in: 5.15.0-1086.94
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg (jammy)Fixed in: 5.15.0-1098.104
ubuntupatch availablevia ubuntu_usn
Product: linux-kvm (jammy)Fixed in: 5.15.0-1095.100
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (jammy)Fixed in: 5.15.0-1098.99
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (jammy)Fixed in: 5.15.0-1055.55
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (jammy)Fixed in: 5.15.0-1100.106
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx-zynqmp (jammy)Fixed in: 5.15.0-1067.71
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (jammy)Fixed in: 5.15.0-1102.111
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-5.15 (focal)Fixed in: 5.15.0-1103.110~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-5.15 (focal)Fixed in: 5.15.0-1103.112~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg-5.15 (focal)Fixed in: 5.15.0-1098.104~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-5.15 (focal)Fixed in: 5.15.0-1100.106~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (jammy)Fixed in: 5.15.0-1099.105
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-igx (jammy)Fixed in: 5.15.0-1044.44
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iot-realtime (jammy)Fixed in: 5.15.0-1094.96
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-5.15 (focal)Fixed in: 5.15.0-1110.119~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-6.8 (jammy)Fixed in: 6.8.0-1054.57~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx (noble)Fixed in: 6.8.0-1029.30
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (noble)Fixed in: 6.8.0-1054.60+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (noble)Fixed in: 6.8.0-1054.60
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (questing)Fixed in: 6.17.0-1014.14
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-6.17 (noble)Fixed in: 6.17.0-1013.13~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oem-6.17 (noble)Fixed in: 6.17.0-1020.20
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (questing)Fixed in: 6.17.0-1013.13
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (jammy)Fixed in: 5.15.0-1109.118+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (jammy)Fixed in: 5.15.0-1109.118
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-6.8 (jammy)Fixed in: 6.8.0-1052.55~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-6.8 (jammy)Fixed in: 6.8.0-110.110.1~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (noble)Fixed in: 6.8.0-110.110
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (noble)Fixed in: 6.8.0-1052.55
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (noble)Fixed in: 6.8.0-1054.57
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (noble)Fixed in: 6.8.0-1050.56
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (noble)Fixed in: 6.8.0-1037.40
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (noble)Fixed in: 6.8.0-1051.51
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (noble)Fixed in: 6.8.0-110.110.1
ubuntupatch availablevia ubuntu_usn
Product: linux (questing)Fixed in: 6.17.0-22.22
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (questing)Fixed in: 6.17.0-1010.11
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-6.8 (jammy)Fixed in: 6.8.0-1051.54~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (noble)Fixed in: 6.8.0-1051.54
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (noble)Fixed in: 6.8.0-1052.55+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (noble)Fixed in: 6.8.0-110.110+fips2
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (noble)Fixed in: 6.8.0-1054.57+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime-6.8 (jammy)Fixed in: 6.8.1-1047.48~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (noble)Fixed in: 6.8.1-1047.48
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-6.17 (noble)Fixed in: 6.17.0-1012.12~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (questing)Fixed in: 6.17.0-1012.12
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi-realtime (noble)Fixed in: 6.8.0-2042.43
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (noble)Fixed in: 6.8.0-1049.50
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-6.8 (jammy)Fixed in: 6.8.0-110.110~22.04.1
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel

Vendor Advisories (30)

ubuntuUSN-8265-1

Linux kernel (NVIDIA Tegra) vulnerabilities

May 11, 2026
ubuntuUSN-8261-1

Linux kernel (Xilinx) vulnerabilities

May 7, 2026
ubuntuUSN-8260-1

Linux kernel (Azure FIPS) vulnerabilities

May 7, 2026
ubuntuUSN-8258-1

Linux kernel (Azure) vulnerabilities

May 7, 2026
ubuntuUSN-8257-1

Linux kernel (Raspberry Pi) vulnerabilities

May 7, 2026
ubuntuUSN-8245-1

Linux kernel vulnerabilities

May 7, 2026
ubuntuUSN-8243-1

Linux kernel (Azure) vulnerabilities

May 7, 2026
ubuntuUSN-8179-4

Linux kernel (GCP) vulnerabilities

May 7, 2026
ubuntuUSN-8185-2

Linux kernel (Low Latency NVIDIA) vulnerabilities

Apr 28, 2026
ubuntuUSN-8204-1

Linux kernel (Raspberry Pi Real-time) vulnerabilities

Apr 23, 2026
ubuntuUSN-8203-1

Linux kernel (Oracle) vulnerabilities

Apr 23, 2026
ubuntuUSN-8179-3

Linux kernel vulnerabilities

Apr 23, 2026
ubuntuUSN-8183-2

Linux kernel vulnerabilities

Apr 23, 2026
ubuntuUSN-8185-1

Linux kernel (NVIDIA) vulnerabilities

Apr 17, 2026
ubuntuUSN-8179-2

Linux kernel (FIPS) vulnerabilities

Apr 17, 2026
ubuntuUSN-8184-1

Linux kernel (Real-time) vulnerabilities

Apr 17, 2026
ubuntuUSN-8183-1

Linux kernel (GCP) vulnerabilities

Apr 17, 2026
ubuntuUSN-8179-1

Linux kernel vulnerabilities

Apr 16, 2026
ubuntuUSN-8177-1

Linux kernel vulnerabilities

Apr 16, 2026
ubuntuUSN-8163-2

Linux kernel (Azure) vulnerabilities

Apr 13, 2026
ubuntuUSN-8163-1

Linux kernel (Azure FIPS) vulnerabilities

Apr 9, 2026
ubuntuUSN-8141-1

Linux kernel (Raspberry Pi) vulnerabilities

Apr 1, 2026
ubuntuUSN-8096-5

Linux kernel (NVIDIA Tegra IGX) vulnerabilities

Mar 23, 2026
ubuntuUSN-8116-1

Linux kernel (Intel IoTG Real-time) vulnerabilities

Mar 23, 2026
ubuntuUSN-8096-4

Linux kernel (Real-time) vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-3

Linux kernel vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-2

Linux kernel (FIPS) vulnerabilities

Mar 16, 2026
ubuntuUSN-8096-1

Linux kernel vulnerabilities

Mar 16, 2026
microsoft2026-Jan/CVE-2025-71098Critical

ip6_gre: make ip6gre_header() robust

Jan 13, 2026
redhatCVE-2025-71098Moderate

kernel: ip6_gre: make ip6gre_header() robust

Jan 13, 2026

References

cert-portal.siemens.com / productcert/html/ssa-019113.html
git.kernel.org / stable/c/1717357007db150c2d703f13f5695460e960f26c
Patch
git.kernel.org / stable/c/17e7386234f740f3e7d5e58a47b5847ea34c3bc2
Patch
git.kernel.org / stable/c/41a1a3140aff295dee8063906f70a514548105e8
Patch
git.kernel.org / stable/c/5fe210533e3459197eabfdbf97327dacbdc04d60
Patch
git.kernel.org / stable/c/91a2b25be07ce1a7549ceebbe82017551d2eec92
Patch
git.kernel.org / stable/c/adee129db814474f2f81207bd182bf343832a52e
Patch
git.kernel.org / stable/c/db5b4e39c4e63700c68a7e65fc4e1f1375273476
Patch