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

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

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 173610fff55022a5ad1579fbcc7faa97467b58b7, 3.11, 3.13; 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 173610fff55022a5ad1579fbcc7faa97467b58b7, 3.11, 3.13; 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: sctp: avoid livelock while updating retransmit path sctp_assoc_update_retran_path() can loop forever when every remaining transport, including retran_path, is SCTP_UNCONFIRMED: the state check runs before the wraparound test, so the loop cannot observe that it has completed a full pass. Fix this by considering a transport only when it is not UNCONFIRMED, then checking whether the walk has returned to retran_path. This makes the full-pass termination independent of the transport state while preserving the existing fallback selection semantics. Also restore the NULL guard around the retran_path assignment. In the all-UNCONFIRMED case there is no eligible replacement transport, and installing NULL would leave later retransmit-path users and the debug print with a NULL path.

—No exploit Fix available
Published
Oct 18, 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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  • No public exploit code on record
  • 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

    • 8ceaec02b17397d12719a282945abc95f8149d9f, d2c2bdcdd8c5ce3d2a68aa3353ed1f340c3e500e, 3.14affected
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before 3fe624c3843694ab096fdb198526ba0c659febbeaffected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before 43410c1f2db53516e95ddd7e5b4b02f495b78121affected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before d893a7cc1cb41dd510f338bb2bfd8f29b14eaf49affected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before 83b1a7f9e718828ef364a7b004254ebb2d0035feaffected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before 173610fff55022a5ad1579fbcc7faa97467b58b7affected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before c9338057df1025f578fe7d0ff08bada87b8b838daffected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before ddc34cc0834c873871e88b055ee6a260676efe97affected · git
    • 4c47af4d5eb2c2f78f886079a3920a7078a6f0a0 and later · before d2c31b837406395e576afeb25958c98e9938f3f6affected · git
    • 3.10.106 and later · before 3.11affected · 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-2026-98612Oct 18, 2026 · net: usb: catc: bound the RX packet length in catc_rx_done()
    0Monitor
  • ← EarlierCVE-2026-98613Oct 18, 2026 · bpf: Bound ownership depth through local kptrs and graph roots
    0Monitor
  • Later →CVE-2026-98615Oct 18, 2026 · eth: fbnic: Set AW_FLUSH_MODE alongside AW_FLUSH when flushing the mailbox
    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 Linux173610fff55022a5ad1579fbcc7faa97467b58b7Vendor (CNA)
Linux Linux3.11Vendor (CNA)
Linux Linux3.13Vendor (CNA)
Linux Linux3fe624c3843694ab096fdb198526ba0c659febbeVendor (CNA)
Linux Linux43410c1f2db53516e95ddd7e5b4b02f495b78121Vendor (CNA)
Linux Linux83b1a7f9e718828ef364a7b004254ebb2d0035feVendor (CNA)
Linux Linuxc9338057df1025f578fe7d0ff08bada87b8b838dVendor (CNA)
Linux Linuxd2c31b837406395e576afeb25958c98e9938f3f6Vendor (CNA)
Linux Linuxd893a7cc1cb41dd510f338bb2bfd8f29b14eaf49Vendor (CNA)
Linux Linuxddc34cc0834c873871e88b055ee6a260676efe97Vendor (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 7, 2026+20 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.

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