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

CVE-2026-104715: Cifs-utils: mount.cifs credential-file option injection allows local privilege boundary bypass

HighCVSS 7.8 · v3.1—Proof of concept Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.26% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: azl3 cifs-utils 7.7-1 on Azure Linux 3.0 7.9-1.

Low priority for now. Upgrade to azl3 cifs-utils 7.7-1 on Azure Linux 3.0 7.9-1 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

A flaw was found in cifs-utils. This flaw allows an unprivileged local user to achieve privilege escalation. When a privileged service mounts a Common Internet File System (CIFS) share using a user-controlled credentials file, input values are not properly sanitized before being assembled into mount options. A local attacker can exploit this vulnerability to inject unauthorized mount options, allowing them to bypass permission checks and execute files with administrative (root) privileges.

Published
Oct 16, 2026
Updated
Nov 4, 2026
EPSS
0.2% · 18th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-104715

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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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 (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected
    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 5

    • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.21cifs-utilsbefore 7.1-r17.1-r1
Alpine:v3.22cifs-utilsbefore 7.3-r17.3-r1
Alpine:v3.23cifs-utilsbefore 7.4-r17.4-r1
Alpine:v3.24cifs-utilsbefore 7.5-r17.5-r1
Debian:12cifs-utilsfrom 0—
Debian:13cifs-utilsbefore 2:7.4-1+deb13u12:7.4-1+deb13u1
Debian:14cifs-utilsbefore 2:7.9-12:7.9-1
openSUSE:Leap 16.0cifs-utilsbefore 7.4-160000.3.17.4-160000.3.1
SUSE:Linux Enterprise Micro 5.3cifs-utilsbefore 6.15-150400.3.27.16.15-150400.3.27.1
SUSE:Linux Enterprise Server 12 SP5-LTSScifs-utilsbefore 6.9-13.32.26.9-13.32.2
SUSE:Linux Micro 6.0cifs-utilsbefore 7.0-159998.1.17.0-159998.1.1
SUSE:Linux Micro 6.2cifs-utilsbefore 7.4-160000.3.17.4-160000.3.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-109968Oct 14, 2026 · Clevis: clevis: pkcs#11 luks passphrase logged in plaintext to world-readable file
    22Monitor
  • ← EarlierCVE-2026-110777Oct 14, 2026 · Evolution-data-server: local file disclosure via attach file:// uris
    22Monitor
  • Later →CVE-2026-111555Oct 16, 2026 · Luksmeta: missing slot-range validation permits out-of-gap device i/o
    24Monitor

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
azl3 cifs-utils 7.7-1 on Azure Linux 3.07.9-1 · Release NotesMicrosoft (MSRC)
alpine:cifs-utils7.1-r1 · Alpine:v3.21Package registry (OSV)
debian:cifs-utils2:7.4-1+deb13u1 · Debian:13Package registry (OSV)
opensuse:cifs-utils7.4-160000.3.1 · openSUSE:Leap 16.0Package registry (OSV)
suse:cifs-utils6.15-150400.3.27.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:cifs-utils7.0-159998.1.1 · SUSE:Linux Micro 6.0Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-10-15

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. First PoC-1 d
  2. Published
  3. Fix recorded+1 d
  4. TodayNov 13, 2026+29 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-12567225 days apartCockpit: cockpit-storaged: tang keyserver address from an untrusted luks header clevis token reaches curl's argument vector as an option
    26Monitor
  • CVE-2026-1115810 days apartLibblockdev: libblockdev: argument injection in ntfs/vfat label-setting helpers via udisks2 setlabel() d-bus method
    13Monitor
  • CVE-2026-10532611 days apartCups: cups: argument injection in mailto notifier via notify-recipient-uri
    10Monitor

Not on record for this CVE: patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-88 · Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓
  3. Exploit maturity— → poc

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records