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NVD / CVE Program· CNA Linux

CVE-2026-68325: iommu/amd: Bound the early ACPI HID map

—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Fixed version: Linux Linux 030a8e84f8f1b6e96f469c84a13a225c3699910b, 1e31d2394e0db69541b1591d46c5ad6431c81db3, 9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 030a8e84f8f1b6e96f469c84a13a225c3699910b, 1e31d2394e0db69541b1591d46c5ad6431c81db3, 9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Bound the early ACPI HID map The ivrs_acpihid command-line parser appends entries to a fixed four-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET parsers, it does not reject a fifth entry before incrementing the map size. Check the capacity at the common found label before parsing the HID and UID or writing the entry.

Published
Aug 10, 2026
Updated
Nov 6, 2026
EPSS
0.1% · 8th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.7affected
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before 9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bbaffected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before e5e0098f8cd82f8b3c8687a8f686309565d51745affected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before afe7ea0520c49586703f210865ace2d70b017e48affected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before 1e31d2394e0db69541b1591d46c5ad6431c81db3affected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before abe5d7962f09adada9c4fb25b816dddd3f97c55daffected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before e5ebe8544df1a1c3611739a8622156094fe470dfaffected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before 030a8e84f8f1b6e96f469c84a13a225c3699910baffected · git
    • ca3bf5d47cec8b7614bcb2e9132c40081d6d81db and later · before fb80117fddb5b477218dc99bb53911b72c3847f8affected · git
    • before 4.7not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-68322Aug 10, 2026 · rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled
    0Monitor
  • ← EarlierCVE-2026-68323Aug 10, 2026 · tipc: serialize udp bearer replicast list updates
    31Monitor
  • Later →CVE-2026-68326Aug 10, 2026 · wifi: mwifiex: bound uAP association event IEs to the event buffer
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux030a8e84f8f1b6e96f469c84a13a225c3699910bVendor (CNA)
Linux Linux1e31d2394e0db69541b1591d46c5ad6431c81db3Vendor (CNA)
Linux Linux9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bbVendor (CNA)
Linux Linuxabe5d7962f09adada9c4fb25b816dddd3f97c55dVendor (CNA)
Linux Linuxafe7ea0520c49586703f210865ace2d70b017e48Vendor (CNA)
Linux Linuxe5e0098f8cd82f8b3c8687a8f686309565d51745Vendor (CNA)
Linux Linuxe5ebe8544df1a1c3611739a8622156094fe470dfVendor (CNA)
Linux Linuxfb80117fddb5b477218dc99bb53911b72c3847f8Vendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records