CVE coverage
Ubuntu 24.04 LTS CVE tracker
Noxen pulls Ubuntu 24.04 CVE data from OSV.dev's Ubuntu ecosystem feed — the same source Canonical uses for its security tracker. Records are deduplicated against NVD and shipped in a signed snapshot, rebuilt daily. Ubuntu Pro / ESM-tagged fixes are kept distinct so you can see at a glance whether a patch requires a paid subscription.
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How matching works
What Noxen does for an Ubuntu 24.04 host
- Reads
/etc/os-releaseover SSH to confirm the host is on Ubuntu 24.04. - Reads the dpkg package list — every binary package, plus its corresponding source package via
dpkg-query --showformat='${Source}'. - Filters the local feed cache to OSV records tagged with ecosystem
Ubuntu:24.04:LTS. - For each record, compares your installed version against the OSV-published fix version using the Debian/Ubuntu version-comparison rules (epoch, upstream, debian-revision).
- Emits a finding only when the installed version is older than the fix. Where Ubuntu Pro / ESM-only fixes apply, they are flagged separately.
Live listings
Top recent critical CVEs (Ubuntu 24.04 / Ubuntu ecosystem)
Most-recently-published critical CVEs in the Ubuntu 24.04 / Ubuntu ecosystem. Auto-deduped to one row per CVE ID. Snapshot baked at ; live re-fetch on page load.
| CVE | Sev. | CVSS | Summary | Package | Fix in | Published |
|---|---|---|---|---|---|---|
| UBUNTU-CVE-2026-46135 | critical | — | In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fix race between ICReq handling and queue teardown nvmet_tcp_handle_icreq() updates queue->state after sending an Initialization Connection Response (ICResp), bu | linux | — | |
| UBUNTU-CVE-2026-45988 | critical | — | In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get re | linux | — | |
| UBUNTU-CVE-2026-46043 | critical | — | In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv rxe_rcv() currently checks only that the incoming packet is at least header_size(pkt) bytes long before pay | linux-azure | — | |
| UBUNTU-CVE-2026-43501 | critical | — | In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows ipv6_rpl_srh_rcv() decompresses an RFC 6554 Source Routing Header, swaps the next segment into ipv6_hdr->dad | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-43304 | critical | — | In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN When decoding the key, verify that the key material would fit into a fixed-size buffer in process_auth_done() and generally has | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-43197 | critical | 9.1 | In the Linux kernel, the following vulnerability has been resolved: netconsole: avoid OOB reads, msg is not nul-terminated msg passed to netconsole from the console subsystem is not guaranteed to be nul-terminated. Before recent commit 7eab | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-43125 | critical | — | In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, i | linux | — | |
| UBUNTU-CVE-2026-43185 | critical | — | In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in smb_direct_prepare_negotiation() smb_direct_prepare_negotiation() casts an unsigned __u32 value from sp->max_recv_size and req->preferred_sen | linux-hwe-edge | — |
Top recent high-severity CVEs (Ubuntu 24.04 / Ubuntu ecosystem)
| CVE | Sev. | CVSS | Summary | Package | Fix in | Published |
|---|---|---|---|---|---|---|
| UBUNTU-CVE-2026-10846 | high | — | NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, | ldns | — | |
| UBUNTU-CVE-2026-46319 | high | — | In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() internally opens and c | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-46320 | high | — | In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tap_get_user_xdp() tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL, and returns -ENOMEM when build_skb() fails. Both | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-45447 | high | — | Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote c | openssl | 1.0.1f-1ubuntu2.27+esm14 | |
| UBUNTU-CVE-2026-46277 | high | — | In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch device folio after calling ->folio_free() The contents of a device folio can immediately change after calling ->folio_free(), as the folio may | linux-hwe-edge | — | |
| UBUNTU-CVE-2026-46304 | high | — | In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free nvmet_tcp_release_queue_work() runs on nvmet-wq and can drop the final controller reference through nvmet_cq_put(). | linux-azure | — | |
| UBUNTU-CVE-2026-46311 | high | — | In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: fix access to stale wptr mapping Use drm_exec to take both locks i.e vm root bo and wptr_obj bo to access the mapping data properly. This fixes the securi | linux-hwe-edge | — | |
| UBUNTU-CVE-2025-71315 | high | — | In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Convert to DRM's vblank timer Replace vkms' vblank timer with the DRM implementation. The DRM code is identical in concept, but differs in implementation. Vblank | linux-hwe-edge | — |
Notable
Recent CVEs that Ubuntu 24.04 fleets should know about.
- CVE-2024-6387 (regreSSHion) — OpenSSH signal-handler race producing pre-auth RCE.. Ubuntu advisory · Noxen deep-dive.
- CVE-2024-3094 (xz backdoor) — Supply-chain backdoor in xz-utils 5.6.0 / 5.6.1.. Ubuntu advisory · Noxen deep-dive.
- CVE-2024-1086 (nf_tables UAF) — Linux kernel privilege-escalation, observed in the wild.. Ubuntu advisory.
- CVE-2026-31431 (kernel algif_aead) — Local privilege escalation in the kernel's userspace AEAD interface.. Ubuntu advisory · Noxen deep-dive.
FAQ
Frequently asked about Ubuntu 24.04 CVEs
How many CVEs affect Ubuntu 24.04 LTS?
Ubuntu 24.04 LTS (Noble Numbat) sits inside the 2-million+ Ubuntu ecosystem feed Noxen consumes (OSV.dev + NVD). The 24.04 subset is filtered by ecosystem tag (Ubuntu:24.04:LTS) and rebuilt daily; live counts at the top of this page.
How do I check Ubuntu 24.04 CVEs on a running host?
For a quick check: apt list --upgradable 2>/dev/null | grep -ci security. For a per-CVE breakdown with fix versions, Noxen reads dpkg over SSH and matches installed source-package versions against the OSV Ubuntu:24.04:LTS ecosystem feed. No agent on the target.
Is Ubuntu 24.04 still supported in 2026?
Yes. Ubuntu 24.04 LTS receives standard security updates from Canonical until April 2029 (5-year LTS window). Ubuntu Pro / ESM extends paid coverage through April 2036 — extended-window CVE fixes appear in the feed tagged Ubuntu:Pro:24.04:LTS.
Scan an Ubuntu 24.04 fleet with Noxen
Add your Ubuntu 24.04 hosts via your existing
~/.ssh/config; Noxen reads dpkg state and
matches against the live signed feed. No agent, no SaaS round-trip.
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