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October 2026 CVE archive

Records last modified in NIST NVD between Oct 1 and Oct 31, 2026 (UTC). Data imported from the NVD CVE API 2.0 and the CISA KEV catalog; each record shows its own source and verification time. The modified view only includes records that were CRITICAL or CISA-KEV-listed when imported — it is not a complete list of every modification.

Published in October 2026Materially updated (Critical / KEV)
Total records
21,893
Critical
3,119
High
7,046
Medium
6,884
Low
606
Severity not reported
4,238
In CISA KEV
186

Most affected vendors (by CPE data where available): microsoft (1423), linux (722), google (413), ibm (321), oracle (193), mozilla (182), adobe (165), broadcom (118), apache (115), fabian (98)

CVESeverityCVSSKEVVendor / productPublishedModified
CVE-2026-89571
In the Linux kernel, the following vulnerability has been resolved: cxl/feature...
high 7.1 —— 2026-09-112026-10-19
CVE-2026-89573
In the Linux kernel, the following vulnerability has been resolved: dm array: r...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89579
In the Linux kernel, the following vulnerability has been resolved: bpf: Harden...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89563
In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel:...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89569
In the Linux kernel, the following vulnerability has been resolved: Bluetooth:...
high 8.8 —— 2026-09-112026-10-19
CVE-2026-89570
In the Linux kernel, the following vulnerability has been resolved: cxl/mce: Ma...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89557
In the Linux kernel, the following vulnerability has been resolved: md: do over...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89559
In the Linux kernel, the following vulnerability has been resolved: libnvdimm/l...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89560
In the Linux kernel, the following vulnerability has been resolved: landlock: R...
high 8.4 —— 2026-09-112026-10-19
CVE-2026-89562
In the Linux kernel, the following vulnerability has been resolved: ip6_gre: fi...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89549
In the Linux kernel, the following vulnerability has been resolved: sunrpc: rou...
high 7.5 —— 2026-09-112026-10-19
CVE-2026-89554
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix...
high 8.2 —— 2026-09-112026-10-19
CVE-2026-89547
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Che...
high 8.1 —— 2026-09-112026-10-19
CVE-2026-89548
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: alw...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89535
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Re...
high 8.1 —— 2026-09-112026-10-19
CVE-2026-89540
In the Linux kernel, the following vulnerability has been resolved: sunrpc: ini...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89521
In the Linux kernel, the following vulnerability has been resolved: sched/core:...
high 7.3 —— 2026-09-112026-10-19
CVE-2026-89522
In the Linux kernel, the following vulnerability has been resolved: media: stag...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89523
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76:...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89524
In the Linux kernel, the following vulnerability has been resolved: wifi: ath6k...
high 8.1 —— 2026-09-112026-10-19
CVE-2026-89508
In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma:...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89510
In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4:...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89511
In the Linux kernel, the following vulnerability has been resolved: qede: Fix N...
high 7.5 —— 2026-09-112026-10-19
CVE-2026-89513
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM...
high 8.8 —— 2026-09-112026-10-19
CVE-2026-89499
In the Linux kernel, the following vulnerability has been resolved: ring-buffer...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89500
In the Linux kernel, the following vulnerability has been resolved: ring-buffer...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89501
In the Linux kernel, the following vulnerability has been resolved: ring-buffer...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89503
In the Linux kernel, the following vulnerability has been resolved: ring-buffer...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89504
In the Linux kernel, the following vulnerability has been resolved: regulator:...
high 8.4 —— 2026-09-112026-10-19
CVE-2026-89507
In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma:...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89493
In the Linux kernel, the following vulnerability has been resolved: ocfs2: vali...
high 8.8 —— 2026-09-112026-10-19
CVE-2026-89497
In the Linux kernel, the following vulnerability has been resolved: orangefs: s...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89486
In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix u...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89487
In the Linux kernel, the following vulnerability has been resolved: openvswitch...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89488
In the Linux kernel, the following vulnerability has been resolved: openvswitch...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89489
In the Linux kernel, the following vulnerability has been resolved: openrisc: f...
high 7.8 —— 2026-09-112026-10-19
CVE-2026-89483
In the Linux kernel, the following vulnerability has been resolved: nvme: zero...
high 7.5 —— 2026-09-112026-10-19
CVE-2026-89476
In the Linux kernel, the following vulnerability has been resolved: sctp: fix s...
high 7.5 —— 2026-09-112026-10-19
CVE-2026-89477
In the Linux kernel, the following vulnerability has been resolved: sctp: fix N...
high 7.5 —— 2026-09-112026-10-19
CVE-2026-89466
In the Linux kernel, the following vulnerability has been resolved: power: supp...
high 7.7 —— 2026-09-112026-10-19

Sources: NIST NVD (CVE API 2.0) and the CISA KEV catalog. Severity is as stated by the source; missing values are shown as “not reported”, never estimated.