{"id":"CVE-2026-31417","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/x25: Fix overflow when accumulating packets\n\nAdd a check to ensure that `x25_sock.fraglen` does not overflow.\n\nThe `fraglen` also needs to be resetted when purging …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/x25: Fix overflow when accumulating packets\n\nAdd a check to ensure that `x25_sock.fraglen` does not overflow.\n\nThe `fraglen` also needs to be resetted when purging …","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-191"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 2.6.12.1, < 5.10.253","linux_kernel >= 5.11, < 5.15.203","linux_kernel >= 5.16, < 6.1.168","linux_kernel >= 6.2, < 6.6.134","linux_kernel >= 6.7, < 6.12.81","linux_kernel >= 6.13, < 6.18.22","linux_kernel >= 6.19, < 6.19.12","linux_kernel = 2.6.12","linux_kernel = 7.0"],"patched":["linux_kernel 6.19.12"],"published":"2026-04-13","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:03.450","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-31417","references":[{"url":"https://git.kernel.org/stable/c/1734bd85c5e0a7a801295b729efb56b009cb8fc3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4e2d1bcef78d21247fe8fef13bc7ed95885df2b5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e568835ea54a3e1d08e310e34f95d434e739477","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/798d613afb64b01a203f448fb0f43c37c6afe79d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8c92969c197b91c134be27dc3afb64ab468853a9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/96fc16370b0bceb289c7e0479bd0540b81e257aa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a1822cb524e89b4cd2cf0b82e484a2335496a6d9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f953f11ccf4afe6feb635c08145f4240d9a6b544","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00449,"epssPercentile":0.38854,"ingestedAt":"2026-09-08T15:33:26.991Z","slug":"CVE-2026-31417","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/x25: Fix overflow when accumulating packets\n\nAdd a check to ensure that `x25_sock.fraglen` does not overflow.\n\nThe `fraglen` also needs to be resetted when purging `fragment_queue` in\n`x25_clear_queues()`.\n\n## Affected\n\n- `linux_kernel >= 2.6.12.1, < 5.10.253`\n- `linux_kernel >= 5.11, < 5.15.203`\n- `linux_kernel >= 5.16, < 6.1.168`\n- `linux_kernel >= 6.2, < 6.6.134`\n- `linux_kernel >= 6.7, < 6.12.81`\n- `linux_kernel >= 6.13, < 6.18.22`\n- `linux_kernel >= 6.19, < 6.19.12`\n- `linux_kernel = 2.6.12`\n- `linux_kernel = 7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.12`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}