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

CVE-2026-98578: nfc: st21nfca: validate ISO15693 inventory length

—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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 3af2ea4035581a1607d9830779c187a0c7e225aa, 57d183764f3002f9625ee4deeeb20716c519534e, 6353dae51bc9b3cad13c9d890b53311a46c96b4e; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3af2ea4035581a1607d9830779c187a0c7e225aa, 57d183764f3002f9625ee4deeeb20716c519534e, 6353dae51bc9b3cad13c9d890b53311a46c96b4e; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: nfc: st21nfca: validate ISO15693 inventory length The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data[1] as the DSFID. Require the prefix and at least two remaining bytes before copying the UID data and reading the DSFID.

Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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 · 0.2%

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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Follow CVE-2026-98578

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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

    • 3.16affected
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before e47b2a350bb0ff123434ec5484c6dc3333b0727caffected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before 57d183764f3002f9625ee4deeeb20716c519534eaffected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before 3af2ea4035581a1607d9830779c187a0c7e225aaaffected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before 9fa21b0f78adb514e3bd96a505ddb752e9727ff3affected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before 6353dae51bc9b3cad13c9d890b53311a46c96b4eaffected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before fdd95e819d828c975aaeb258a3fed5dd7fd136d0affected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before a86987d03a4d39acdbe4533d83db4d656ea36c59affected · git
    • 7974728094d35f38775417a26d8f30ea3602496a and later · before 7f2ea5ed588c03d481f0301e6c3d4240132383fbaffected · git
    • before 3.16not 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 7.2.9-17.2.9-1

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-2026-98576Oct 18, 2026 · nfc: llcp: fix slab-out-of-bounds reads when logging service names
    0Monitor
  • ← EarlierCVE-2026-98577Oct 18, 2026 · nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap()
    0Monitor
  • Later →CVE-2026-98579Oct 18, 2026 · nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure
    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 Linux3af2ea4035581a1607d9830779c187a0c7e225aaVendor (CNA)
Linux Linux57d183764f3002f9625ee4deeeb20716c519534eVendor (CNA)
Linux Linux6353dae51bc9b3cad13c9d890b53311a46c96b4eVendor (CNA)
Linux Linux7f2ea5ed588c03d481f0301e6c3d4240132383fbVendor (CNA)
Linux Linux9fa21b0f78adb514e3bd96a505ddb752e9727ff3Vendor (CNA)
Linux Linuxa86987d03a4d39acdbe4533d83db4d656ea36c59Vendor (CNA)
Linux Linuxe47b2a350bb0ff123434ec5484c6dc3333b0727cVendor (CNA)
Linux Linuxfdd95e819d828c975aaeb258a3fed5dd7fd136d0Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package 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. TodayNov 13, 2026+26 d
EPSS, last 120 days

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

National notice (Türkiye Cybersecurity Directorate / USOM)

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

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (7 more)

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

All records