Unknown

CVE-2026-92477 — scsi: ufs: debugfs: Reserve space for a string terminator

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufs_saved_err_write() copies user input into a zero-initialized stack buffer and passes it to kstrtoint(). A write that fills the entire buffer overwrites its only terminator. Reject an input whose length leaves no room for the trailing NUL.

Published Sep 17, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.17%

ahead of 6% of scored CVEs · Oct 16, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 7340faae947400907e5e7581444712110d2811d5 and < b43890843e834300f967c69e74c7c2eb22cb1664≥ 7340faae947400907e5e7581444712110d2811d5 and < 587be18e0935632ebd367b0f89e37aa5762e400f≥ 7340faae947400907e5e7581444712110d2811d5 and < d223989e1a1edad217b673486b093bd157fb6c9a≥ 7340faae947400907e5e7581444712110d2811d5 and < cc92af8cc0e4dacd4375d34475141b0f1a70c09e≥ 7340faae947400907e5e7581444712110d2811d5 and < 2b3fb5693c25c21741f357a8c9d0e1f19b7e368f≥ 7340faae947400907e5e7581444712110d2811d5 and < abd26e6b53c4169122d61fdd4cabe09bdd916aacversion 5.16	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 16, 2026 · 2 reading(s) · max 0.17%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 17, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

6 on the record

git.kernel.org/stable/c/abd26e6b53c4169122d61fdd4cabe09bdd916aac
NIST National Vulnerability Database
git.kernel.org/stable/c/cc92af8cc0e4dacd4375d34475141b0f1a70c09e
NIST National Vulnerability Database
git.kernel.org/stable/c/b43890843e834300f967c69e74c7c2eb22cb1664
NIST National Vulnerability Database
git.kernel.org/stable/c/2b3fb5693c25c21741f357a8c9d0e1f19b7e368f
NIST National Vulnerability Database
git.kernel.org/stable/c/d223989e1a1edad217b673486b093bd157fb6c9a
NIST National Vulnerability Database
git.kernel.org/stable/c/587be18e0935632ebd367b0f89e37aa5762e400f
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Unknown CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF 4h
Unknown CVE-2026-98867 dm-pcache: bound the logical key offset from persistent memory 4h
Unknown CVE-2026-98868 dm-pcache: reject a kset that overruns its segment 4h
Unknown CVE-2026-98856 kprobes: Skip disarmed probes when checking optkprobe overlap 4h
Unknown CVE-2026-98857 ipvs: bound LBLCR and LBLC cache growth 4h
Unknown CVE-2026-98858 io_uring: fix task_work add use-after-free with SQPOLL 4h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-92477 is "scsi: ufs: debugfs: Reserve space for a string terminator", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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