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

CVE-2026-98409: watchdog: rtd119x: Avoid division by zero

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 1f22001b34984350844d629862f70934770cb796, 5af7d2cbd20f893def03c8310a460ade66a5d822, 5cfea211bd3440b1de0b2d7dc2809c6350a5b722; 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 1f22001b34984350844d629862f70934770cb796, 5af7d2cbd20f893def03c8310a460ade66a5d822, 5cfea211bd3440b1de0b2d7dc2809c6350a5b722; 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: watchdog: rtd119x: Avoid division by zero clk_get_rate() could return 0. Avoid a division by zero panic.

—No exploit Fix available
Published
Oct 14, 2026
Updated
Oct 30, 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

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

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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.

—

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

    • 4.16affected
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before b2876193a150301993ab2f88afde07568e4de9c7affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before 5cfea211bd3440b1de0b2d7dc2809c6350a5b722affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before 757c721545b9ffac5c3042a0cd3685ea28af7e81affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before 1f22001b34984350844d629862f70934770cb796affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before b4ede87765a2e58ca4f18f5f8037c4826b9cc93faffected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before 8a12e049d517d7dee78500633f8f0e47262a67e0affected · git
    • 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367 and later · before 5af7d2cbd20f893def03c8310a460ade66a5d822affected · git
    • before 4.16not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
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-2026-98407Oct 14, 2026 · wifi: rsi: fix heap OOB write on key removal
    0Monitor
  • ← EarlierCVE-2026-98408Oct 14, 2026 · watchdog: rzv2h: Avoid division by zero
    0Monitor
  • Later →CVE-2026-98410Oct 14, 2026 · watchdog: da9063: fix suspend/resume handling of HW_RUNNING watchdog
    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 Linux1f22001b34984350844d629862f70934770cb796Vendor (CNA)
Linux Linux5af7d2cbd20f893def03c8310a460ade66a5d822Vendor (CNA)
Linux Linux5cfea211bd3440b1de0b2d7dc2809c6350a5b722Vendor (CNA)
Linux Linux757c721545b9ffac5c3042a0cd3685ea28af7e81Vendor (CNA)
Linux Linux8a12e049d517d7dee78500633f8f0e47262a67e0Vendor (CNA)
Linux Linuxb2876193a150301993ab2f88afde07568e4de9c7Vendor (CNA)
Linux Linuxb4ede87765a2e58ca4f18f5f8037c4826b9cc93fVendor (CNA)
Linux Linuxd4ef7cf5d31c3cbc6f87721fb950ab10dadeee72Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
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. TodayNov 5, 2026+22 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).

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. 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.

All records