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CVE-2026-31503: linux kernel 2.6.33; +4 more affected products
CVE-2026-31503. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00123 (percentile 0.01849), scored 14-Oct-2026.
Affected technology
linux kernel · from 2.6.33.1 (inclusive), before 6.1.168 (exclusive)
linux
linux kernel · from 6.2 (inclusive), before 6.6.131 (exclusive)
linux
linux kernel · from 6.7 (inclusive), before 6.12.80 (exclusive)
linux
linux kernel · from 6.13 (inclusive), before 6.18.21 (exclusive)
linux
linux kernel · from 6.19 (inclusive), before 6.19.11 (exclusive)
linux
linux kernel · 2.6.33
linux
linux kernel · 7.0 · update rc1
linux
linux kernel · 7.0 · update rc2
linux
linux kernel · 7.0 · update rc3
linux
linux kernel · 7.0 · update rc4
linux
linux kernel · 7.0 · update rc5
linux
linux kernel · 7.0 · update rc6
linux
linux kernel · 7.0 · update rc7
linux
Linux · 30fff9231fad757c061285e347b33c5149c2c2e4 to before d6ace0dbcbb7fd285738bb87b42b71b01858c952, 30fff9231fad757c061285e347b33c5149c2c2e4 to before 2297e38114316b26ae02f2d205c49b5511c5ed55, 30fff9231fad757c061285e347b33c5149c2c2e4 to before f1bed05a832ae79be5f7a105da56810eaa59a5f1, 30fff9231fad757c061285e347b33c5149c2c2e4 to before 18d84c45def3671d5c89fbdd5d4ab8a3217fe4b4, 30fff9231fad757c061285e347b33c5149c2c2e4 to before 0a360f7f73a06ac88f18917055fbcc79694252d7, 30fff9231fad757c061285e347b33c5149c2c2e4 to before e537dd15d0d4ad989d56a1021290f0c674dd8b28
Linux
Linux · 2.6.33
Linux
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.6 to before *
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.5 to before *
Siemens
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.7 to before *
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens
Component: Not specified by the source
File: include/net/inet_hashtables.h, net/ipv4/inet_connection_sock.c, net/ipv4/udp.c
Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 22.0 /100 (P4)
- CVSS 3.1
- 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.00123 · percentile 0.01849 · 2026-10-14
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-15 09:24:28.011626+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-15 10:43:56.988652+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-15 09:18:22.406219+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-31503.html