7.8

CVE-2026-104715: cifs-utils Argument Injection

CVSS: 7.8v3.1HighAwaiting analysis
AliasesDEBIAN-CVE-2026-104715UBUNTU-CVE-2026-104715
Published 16-10-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-104715 is a high (CVSS 7.8) Argument Injection vulnerability in cifs-utils. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-10-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

16-10-202618-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • cifs-utilsAll versions (No fix recorded) | < 2:7.4-1+deb13u1
Ubuntu1 product
  • cifs-utilsAll versions (No fix recorded)

2 vendors · 2 products

References

6 links