CVE-2025-38264: nvme-tcp: sanitize request list handling
Vulnerability summary
CVE-2025-38264 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.8% of scored vulnerabilities.
Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 40 · Related 39Timeline
- 09-07-2025PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: sanitize request list handling Validate the request in nvme_tcp_handle_r2t() to ensure it's not part of any list, otherwise a malicious R2T PDU might inject a loop in request list processing.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
Increase +0.14 pp
From 0.31% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu143 products
- linuxAll versions (No fix recorded) | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 3f2304f8c6d6ed97849057bd16fee99e434ca796, < 8f27d152b2a59f443091cf9e3d815f06e32e9b96 | ≥ 3f2304f8c6d6ed97849057bd16fee99e434ca796, < 78a4adcd3fedb0728436e8094848ebf4c6bae006 | ≥ 3f2304f8c6d6ed97849057bd16fee99e434ca796, < f054ea62598197714a6ca7b3b387a027308f8b13 | ≥ 3f2304f8c6d6ed97849057bd16fee99e434ca796, < 0bf04c874fcb1ae46a863034296e4b33d8fbd66c | 5.0
- linux_kernel≥ 5.0, < 6.12.36 | ≥ 6.13, < 6.15.5
Debian1 product
- linuxAll versions (No fix recorded) | < 6.12.37-1
3 vendors · 146 products