# CVE-2015-3246

## Summary

- **CVE ID:** CVE-2015-3246
- **Severity:** MEDIUM
- **CVSS Score:** 5.1 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** N/A
- **Published:** Aug 11, 2015
- **Last Modified:** Aug 27, 2026

## 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 Products

- n/a — n/a (n/a)

## References

- [CNA](http://www.securityfocus.com/bid/76022)
- [CNA](http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162947.html)
- [CNA](https://www.exploit-db.com/exploits/44633/)
- [CNA](https://access.redhat.com/articles/1537873)
- [CNA](http://rhn.redhat.com/errata/RHSA-2015-1482.html)
- [CNA](http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163044.html)
- [CNA](http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00000.html)
- [CNA](https://www.qualys.com/2015/07/23/cve-2015-3245-cve-2015-3246/cve-2015-3245-cve-2015-3246.txt)
- [CNA](http://www.securitytracker.com/id/1033040)
- [CNA](http://rhn.redhat.com/errata/RHSA-2015-1483.html)
- [CISA-ADP](https://blog.talosintelligence.com/uat-10147-chinese-speaking-adversary-integrates-agentic-ai-into-post-compromise-operations/)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3246)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 21.42%
- **EPSS Percentile:** 95.6

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Aug 26, 2026
- **Due Date:** Sep 9, 2026

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._