How many CVEs affect Ubuntu 22.04 LTS?

Ubuntu 22.04 LTS (Jammy) sits inside the 2-million+ Ubuntu ecosystem feed Noxen consumes (OSV.dev + NVD). The 22.04 subset is filtered by ecosystem tag (Ubuntu:22.04:LTS) and rebuilt daily; live counts at the top of this page.

How do I check Ubuntu 22.04 CVEs on a running host?

For the immediate count: `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:22.04:LTS ecosystem feed. No agent on the target.

Is Ubuntu 22.04 still supported in 2026?

Yes. Ubuntu 22.04 LTS receives standard security updates from Canonical until April 2027 (5-year LTS window). Ubuntu Pro / ESM extends paid coverage through April 2032 — extended-window CVE fixes appear in the feed tagged Ubuntu:Pro:22.04:LTS. Many homelab and small-fleet operators are still on 22.04 because the 24.04 upgrade hasn't pulled them yet.

What's different between Ubuntu 22.04 and 24.04 CVE coverage?

Same data source (OSV.dev's Ubuntu ecosystem feed). Difference is the package versions and what's been backported. A CVE patched upstream in OpenSSH 9.8 gets a 22.04 backport into openssh-server 1:8.9p1-3ubuntu0.10+esm2 (note the +esm2 suffix indicating Pro/ESM channel) and a separate 24.04 backport into 1:9.6p1-3ubuntu13.3. Noxen matches against the right per-release fix version automatically.

Does Noxen need Ubuntu Pro to scan 22.04 hosts?

No. The CVE feed Noxen consumes is publicly available regardless of Pro. What Pro provides is access to the actual fix packages (via Canonical's ESM channels). Noxen will tell you the host needs Pro to install the patched version when the only available fix is ESM-gated; the scan itself doesn't require a subscription.

CVE coverage

Ubuntu 22.04 LTS CVE tracker

Noxen pulls Ubuntu 22.04 CVE data from OSV.dev's Ubuntu ecosystem feed — the same source Canonical itself publishes through their security tracker. Records are deduped against NVD/VulnCheck and shipped in a signed snapshot, daily. Pro/ESM-tagged fixes are kept distinct so you can see whether a patch requires a paid subscription before clicking through.

Live

Headline numbers

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How matching works

What Noxen does for an Ubuntu 22.04 host

Reads /etc/os-release over SSH to confirm the host is on Ubuntu 22.04.
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:22.04: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 22.04 / Ubuntu ecosystem)

Most-recently-published critical CVEs in the Ubuntu 22.04 / Ubuntu ecosystem. Auto-deduped to one row per CVE ID. Snapshot baked at 2026-05-12; live re-fetch on page load.

CVE	Sev.	CVSS	Summary	Package	Fix in	Published
UBUNTU-CVE-2024-40896	critical	9.1	In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE att	libxml2	2.12.7+dfsg-3ubuntu0.1	2024-12-23
UBUNTU-CVE-2024-9486	critical	9.8	A security issue was discovered in the Kubernetes Image Builder versions <= v0.1.37 where default credentials are enabled during the image build process. Virtual machine images built using the Proxmox provider do not disable these default c	kubernetes	—	2024-10-15
UBUNTU-CVE-2024-6385	critical	9.8	An issue was discovered in GitLab CE/EE affecting all versions starting from 15.8 prior to 16.11.6, starting from 17.0 prior to 17.0.4, and starting from 17.1 prior to 17.1.2, which allows an attacker to trigger a pipeline as another user u	gitlab	—	2024-07-11
UBUNTU-CVE-2024-38998	critical	9.8	Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.	requirejs	—	2024-07-01
UBUNTU-CVE-2024-35325	critical	9.8	A vulnerability was found in libyaml up to 0.2.5. Affected by this issue is the function yaml_event_delete of the file /src/libyaml/src/api.c. The manipulation leads to a double-free.	libyaml	—	2024-06-13
UBUNTU-CVE-2024-35326	critical	9.8	libyaml v0.2.5 is vulnerable to Buffer Overflow. Affected by this issue is the function yaml_emitter_emit of the file /src/libyaml/src/emitter.c. The manipulation leads to a double-free.	libyaml	—	2024-06-13
UBUNTU-CVE-2024-35863	critical	—	In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in is_valid_oplock_break() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.	linux-hwe-edge	—	2024-05-19
UBUNTU-CVE-2024-3094	critical	—	Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source	xz-utils	5.2.4-1ubuntu1.1	2024-03-29

Top recent high-severity CVEs (Ubuntu 22.04 / Ubuntu ecosystem)

CVE	Sev.	CVSS	Summary	Package	Fix in	Published
UBUNTU-CVE-2026-43284	high	—	In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb	linux	—	2026-05-08
UBUNTU-CVE-2026-43500	high	—	rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present	linux	—	2026-05-08
UBUNTU-CVE-2026-23918	high	—	http2: double free and possible RCE on early reset	apache2	2.4.66-2ubuntu2.1	2026-05-05
UBUNTU-CVE-2026-31431	high	—	In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operatin	linux-azure	—	2026-04-23
UBUNTU-CVE-2026-41651	high	—	security update	packagekit	0.8.17-4ubuntu6~gcc5.4ubuntu1.5+esm1	2026-04-23
UBUNTU-CVE-2026-34197	high	—	Improper Input Validation, Improper Control of Generation of Code ('Code Injection') vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ. Apache ActiveMQ Classic exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ on the web console.	activemq	—	2026-04-07
UBUNTU-CVE-2026-35535	high	—	In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.	sudo	1.9.9-1ubuntu2.6	2026-04-03
UBUNTU-CVE-2026-23410	high	—	In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race on rawdata dereference There is a race condition that leads to a use-after-free situation: because the rawdata inodes are not refcounted, an attacker can	linux-azure	—	2026-04-01

New to severity terminology? CVE, CVSS, CWE, CPE explained.

Notable

Recent CVEs Ubuntu 22.04 operators should know.

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.

Scan an Ubuntu 22.04 fleet with Noxen

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