VulnerabilityPublished 18 Oct 2026

CVE-2026-98576: Linux kernel · nfc: llcp: fix slab-out-of-bounds reads when logging service names

Source GCVE Database

Authoritative record:CVE-2026-98576· Low

Not known to be exploited · fixed in a143f7835faa4fe0178448289feea4f84eeee8d6 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity

Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in a143f7835faa4fe0178448289feea4f84eeee8d6, 8978dff632519712d1fa432991e1f2e857f90239, 4262b12277a3e056c95fc49e9c4d7bd97035d16c +5

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-4wv6-7jcw-864j

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < a143f7835faa4fe0178448289feea4f84eeee8d6	Fixed in a143f7835faa4fe0178448289feea4f84eeee8d6
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 8978dff632519712d1fa432991e1f2e857f90239	Fixed in 8978dff632519712d1fa432991e1f2e857f90239
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 4262b12277a3e056c95fc49e9c4d7bd97035d16c	Fixed in 4262b12277a3e056c95fc49e9c4d7bd97035d16c
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 75f7c5a42fa1483f5912279a749417c284ad708f	Fixed in 75f7c5a42fa1483f5912279a749417c284ad708f
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b	Fixed in 75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b
LinuxLinux	Affected ≥ d9b8d8e19b073096d3609bbd60f82148d128b555, < 8afb6c194f5781798d3ab3edf243cf5a24a9d1f9	Fixed in 8afb6c194f5781798d3ab3edf243cf5a24a9d1f9

AI-suggested

A fix has been implemented in the Linux kernel source code to address this issue by properly bounding the debug output length. Users should apply the official kernel updates containing this fix when available. Patch status is not explicitly stated; check the vendor advisory for current remediation guidance.

Description

A slab-out-of-bounds read vulnerability in the Linux kernel's NFC LLCP component was resolved. The issue occurred when non-null-terminated strings were passed to debug logging functions, causing reads beyond allocated memory buffers. This was fixed by limiting the output length explicitly in the debug calls.

References

Community reviews

Loading reviews…