VulnerabilityPublished 14 Oct 2026Updated 30 Oct 2026

CVE-2026-98409: Linux kernel · watchdog: rtd119x: Avoid division by zero

Source GCVE Database

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Authoritative record:CVE-2026-98409· Medium

Not known to be exploited · fixed in d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 17:18 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72, b2876193a150301993ab2f88afde07568e4de9c7, b4ede87765a2e58ca4f18f5f8037c4826b9cc93f +5

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-g5rp-3454-m36c

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72	Fixed in d4ef7cf5d31c3cbc6f87721fb950ab10dadeee72
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < b2876193a150301993ab2f88afde07568e4de9c7	Fixed in b2876193a150301993ab2f88afde07568e4de9c7
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < b4ede87765a2e58ca4f18f5f8037c4826b9cc93f	Fixed in b4ede87765a2e58ca4f18f5f8037c4826b9cc93f
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < 757c721545b9ffac5c3042a0cd3685ea28af7e81	Fixed in 757c721545b9ffac5c3042a0cd3685ea28af7e81
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < 8a12e049d517d7dee78500633f8f0e47262a67e0	Fixed in 8a12e049d517d7dee78500633f8f0e47262a67e0
LinuxLinux	Affected ≥ 2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367, < 5cfea211bd3440b1de0b2d7dc2809c6350a5b722	Fixed in 5cfea211bd3440b1de0b2d7dc2809c6350a5b722

AI-suggested

A fix has been applied to the Linux kernel to prevent division by zero in the rtd119x watchdog driver. Users should update their Linux kernel to a version that includes this fix. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel watchdog driver for rtd119x hardware could cause a division by zero panic due to clk_get_rate() returning zero. This issue has been resolved in the kernel.

References

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