CVE-2015-3246

Act now ● On CISA KEV — actively exploited

Actively exploited — on the CISA KEV list.

CVSS base

5.1 MEDIUM

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

EPSS — probability of exploitation (30 days)

8.8%

94.9th percentile

CISA KEV

Listed

Added 2026-08-26 · patch by 2026-09-09

Weakness / dates

CWE-367

Published 2015-08-11 · modified 2026-08-27

CVSS breakdown

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

Attack Vector	L	Local
Attack Complexity	H	High
Privileges Required	N	None
User Interaction	N	None
Scope	U	Unchanged
Confidentiality	N	None
Integrity	N	None
Availability	H	High

Timeline

2015-08-11 — Published (NVD)
2026-08-26 — Added to CISA KEV (actively exploited)
2026-09-09 — CISA patch-by deadline
2026-08-27 — Last modified (NVD)

Description

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.

Affected

libuser_project opensuse redhat

References

Official: NVD · CVE.org