VulnerabilityPublished 18 Oct 2026

CVE-2026-98614: Linux kernel · sctp: avoid livelock while updating retransmit path

Source GCVE Database

Authoritative record:CVE-2026-98614· Medium

Not known to be exploited · fixed in ddc34cc0834c873871e88b055ee6a260676efe97 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in ddc34cc0834c873871e88b055ee6a260676efe97, d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49, d2c31b837406395e576afeb25958c98e9938f3f6 +7

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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-hjhx-c2pg-c62c

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected >=3.10.106 <3.11 >=3.12.71 <3.13	Fixed in ddc34cc0834c873871e88b055ee6a260676efe97 d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49 d2c31b837406395e576afeb25958c98e9938f3f6 c9338057df1025f578fe7d0ff08bada87b8b838d 173610fff55022a5ad1579fbcc7faa97467b58b7 43410c1f2db53516e95ddd7e5b4b02f495b78121 83b1a7f9e718828ef364a7b004254ebb2d0035fe 3fe624c3843694ab096fdb198526ba0c659febbe 3.13 3.11
LinuxLinux	Affected =3.14	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to address this issue. Users should apply the official kernel update that includes this patch. Since this is a kernel-level fix, upgrading to the patched kernel version is the recommended remediation. No additional mitigations are specified.

Description

A livelock vulnerability in the Linux kernel SCTP implementation was resolved. The function sctp_assoc_update_retran_path() could enter an infinite loop when all transports, including the retransmit path, were in the SCTP_UNCONFIRMED state. This occurred because the loop termination condition did not properly account for this state, causing the function to loop indefinitely. The fix ensures the loop termination is independent of transport state and restores a NULL guard to prevent invalid retransmit path assignments.

References

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