In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on…
Priority LOW 30CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.
Why it matters now
EPSS 0.00551 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cron_project:cron:*:*:*:*:*:*:*:* | up to 3.0pl1-128. | Vulnerable | Cron Project |
| cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:* | all versions | Running on | Canonical |
| cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:* | all versions | Running on | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:cron_project:cron:*:*:*:*:*:*:*:* Versions up to 3.0pl1-128. Vulnerable ·Cron Project
- cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:* Versions all versions Running on ·Canonical
- cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:* Versions all versions Running on ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-9525
- 2026-10-03 Alias added: GHSA-p8jr-r46j-qpx9
References
Sources
- CVE-2017-9525 · CVE Program
- CVE-2017-9525 · NVD
- FIRST EPSS
- GHSA-p8jr-r46j-qpx9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences