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NVD / CVE Program· CNA Linux

CVE-2026-80732: ata: pata_sl82c105: fix bridge revision use-after-free

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 1268ca9418e2217f2b60705cf4a280b689b26678, 56fd78c8c820f527f8003e379ab71004b2e79a44, 5ef87b1b4656d675440ceab32a56e69ad958d3a1; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1.

Low priority for now. Upgrade to Linux Linux 1268ca9418e2217f2b60705cf4a280b689b26678, 56fd78c8c820f527f8003e379ab71004b2e79a44, 5ef87b1b4656d675440ceab32a56e69ad958d3a1; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1 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: ata: pata_sl82c105: fix bridge revision use-after-free pci_get_slot() returns a referenced PCI device. Commit 44c10138fd4b ("PCI: Change all drivers to use pci_device->revision") replaced a configuration-space read with direct access to the cached revision field, but left that access after pci_dev_put(). The bridge may therefore be freed before its revision is read. Read the revision before dropping the reference.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Sep 3, 2026
Updated
Sep 4, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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.

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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

    • 2.6.23affected
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before 1268ca9418e2217f2b60705cf4a280b689b26678affected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before a626dfca96041842053cf2d1efceb436c4cd8dcfaffected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before 5ef87b1b4656d675440ceab32a56e69ad958d3a1affected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before fa0dca89b4fb0909ffda7b9ab6051af33270f95eaffected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before dc711fb137b33c12e6ca22b6a9c9b9f21d49e4deaffected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before a837deeaa37cc3f0e8c4e5c096787047f272c956affected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before 56fd78c8c820f527f8003e379ab71004b2e79a44affected · git
    • 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 and later · before 7700a31039cdc6715cb6cce7e7a664ee4e945f67affected · git
    • before 2.6.23not 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 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.9-17.1.9-1

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-2026-80727Sep 3, 2026 · x86/mce: Set up the polling timer before CMCI discovery
    0Monitor
  • ← EarlierCVE-2026-80730Sep 3, 2026 · ring-buffer: Fix crash passing ERR_PTR to kthread_stop()
    0Monitor
  • Later →CVE-2026-80733Sep 3, 2026 · net: remove WARN_ON_ONCE() from sk_mc_loop()
    0Monitor

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 Linux1268ca9418e2217f2b60705cf4a280b689b26678Vendor (CNA)
Linux Linux56fd78c8c820f527f8003e379ab71004b2e79a44Vendor (CNA)
Linux Linux5ef87b1b4656d675440ceab32a56e69ad958d3a1Vendor (CNA)
Linux Linux7700a31039cdc6715cb6cce7e7a664ee4e945f67Vendor (CNA)
Linux Linuxa626dfca96041842053cf2d1efceb436c4cd8dcfVendor (CNA)
Linux Linuxa837deeaa37cc3f0e8c4e5c096787047f272c956Vendor (CNA)
Linux Linuxdc711fb137b33c12e6ca22b6a9c9b9f21d49e4deVendor (CNA)
Linux Linuxfa0dca89b4fb0909ffda7b9ab6051af33270f95eVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~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.

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Bug bounty scope

No known public program.

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

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

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. 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