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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98205: Input: evdev - zero absinfo before partial copy in EVIOCSABS

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 30b853a3d71f16bd0aa66b604bc37dd1254a19b3, 3dfe48d5307a1ba22c58231d04257737015569ca, 71e5619db11dd6429101bd967230d0321ec5ea26; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1.

Low priority for now. Upgrade to Linux Linux 30b853a3d71f16bd0aa66b604bc37dd1254a19b3, 3dfe48d5307a1ba22c58231d04257737015569ca, 71e5619db11dd6429101bd967230d0321ec5ea26; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.158.1-1 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: Input: evdev - zero absinfo before partial copy in EVIOCSABS The EVIOCSABS handler copies at most the user supplied ioctl size into an uninitialized on-stack struct input_absinfo: if (copy_from_user(&abs, p, min_t(size_t, size, sizeof(struct input_absinfo)))) The size comes from _IOC_SIZE() of the ioctl command and is therefore fully controlled by userspace. A short size leaves the trailing part of the structure holding whatever was on the kernel stack, and the whole structure is then stored into the device: dev->absinfo[t] = abs; EVIOCGABS hands that back to userspace, disclosing the stale stack bytes. Only the resolution field is currently cleared, which covers the legacy struct layout but not an arbitrarily short size. Zero the structure before the copy so any part not supplied by the caller reads back as zero. The existing resolution fixup is kept, since it also handles a size that partially overlaps that field.

—No exploit Fix available
Published
Oct 6, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th 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%

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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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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

    • 2.6.36affected
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before c0aebb57b73c7d06ad21731099afe119b113c403affected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before 89b6ffa4bc10c436fa9aecc73be105124cd58a35affected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before e834e134a32b6a5c600fa539bb49146f617743abaffected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before af5f7130cbf39e6e12336d0b7a5f6e76e4e1526baffected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before 30b853a3d71f16bd0aa66b604bc37dd1254a19b3affected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before 71e5619db11dd6429101bd967230d0321ec5ea26affected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before 3dfe48d5307a1ba22c58231d04257737015569caaffected · git
    • 448cd1664a573e69f54bfd32f3bb7220212b6cf5 and later · before 8b852965b8eaf910c314dc346967ed82c8d4f235affected · git
    • before 2.6.36not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.8-17.2.8-1

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-2026-98203Oct 6, 2026 · Input: soc_button_array - check btns_desc->package.count
    0Monitor
  • ← EarlierCVE-2026-98204Oct 6, 2026 · Input: rmi_smbus - fix out-of-bounds read in rmi_smb_write_block()
    0Monitor
  • Later →CVE-2026-98206Oct 6, 2026 · Input: cyttsp5 - clamp the HID report size before memcpy
    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 Linux30b853a3d71f16bd0aa66b604bc37dd1254a19b3Vendor (CNA)
Linux Linux3dfe48d5307a1ba22c58231d04257737015569caVendor (CNA)
Linux Linux71e5619db11dd6429101bd967230d0321ec5ea26Vendor (CNA)
Linux Linux89b6ffa4bc10c436fa9aecc73be105124cd58a35Vendor (CNA)
Linux Linux8b852965b8eaf910c314dc346967ed82c8d4f235Vendor (CNA)
Linux Linuxaf5f7130cbf39e6e12336d0b7a5f6e76e4e1526bVendor (CNA)
Linux Linuxc0aebb57b73c7d06ad21731099afe119b113c403Vendor (CNA)
Linux Linuxe834e134a32b6a5c600fa539bb49146f617743abVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.158.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux7.2.8-1 · Debian:14Package registry (OSV)
debian:linux-6.126.12.113-1~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.

  1. Published
  2. Fix recordedsame day
  3. TodayOct 30, 2026+24 d
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).

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. Exploit maturity— → 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.

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