{"id":"CVE-2025-21735","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: nci: Add bounds checking in nci_hci_create_pipe()\n\nThe \"pipe\" variable is a u8 which comes from the network","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: nci: Add bounds checking in nci_hci_create_pipe()\n\nThe \"pipe\" variable is a u8 which comes from the network.  If it's more\nthan 127, then it results in memory corr…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.4, < 6.1.129","linux_kernel >= 6.2, < 6.6.78","linux_kernel >= 6.7, < 6.12.14","linux_kernel >= 6.13, < 6.13.3"],"patched":["linux_kernel 6.13.3"],"published":"2025-02-27","updated":"2026-07-30","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-21735","references":[{"url":"https://git.kernel.org/stable/c/10b3f947b609713e04022101f492d288a014ddfa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/110b43ef05342d5a11284cc8b21582b698b4ef1c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/172cdfc3a5ea20289c58fb73dadc6fd4a8784a4e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2ae4bade5a64d126bd18eb66bd419005c5550218","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/59c7ed20217c0939862fbf8145bc49d5b3a13f4f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/674e17c5933779a8bf5c15d596fdfcb5ccdebbc2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd249109d266f1d52548c46634a15b71656e0d44","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d5a461c315e5ff92657f84d8ba50caa5abf5c22a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21735.json"},{"url":"https://access.redhat.com/security/cve/CVE-2025-21735"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2348540"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-21735"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21735"},{"url":"https://lore.kernel.org/linux-cve-announce/2025022658-CVE-2025-21735-259b@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.0038,"epssPercentile":0.3194,"ingestedAt":"2026-07-30T06:53:09.569Z","scores":{"nvd":8.8,"vendor":7.8},"slug":"CVE-2025-21735","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nNFC: nci: Add bounds checking in nci_hci_create_pipe()\n\nThe \"pipe\" variable is a u8 which comes from the network.  If it's more\nthan 127, then it results in memory corruption in the caller,\nnci_hci_connect_gate().\n\n## Affected\n\n- `linux_kernel >= 4.4, < 6.1.129`\n- `linux_kernel >= 6.2, < 6.6.78`\n- `linux_kernel >= 6.7, < 6.12.14`\n- `linux_kernel >= 6.13, < 6.13.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.3`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · updated 2026-09-13 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21735.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}