uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user…
Priority HIGH 69CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- 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 · CISA ADP. Fix status from CNA.
Summary
uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user account) to gain root privileges by creating a hard link within the /var/spool/uptimed directory, because there is an unsafe chown -R call.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00414 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uptimed_project:uptimed:*:*:*:*:*:gentoo:*:* | before 0.4.6 | Vulnerable | Uptimed Project |
- cpe:2.3:a:uptimed_project:uptimed:*:*:*:*:*:gentoo:*:* Versions before 0.4.6 Vulnerable ·Uptimed Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36657
- 2026-10-03 Alias added: GHSA-h9jm-ppr9-845g
References
Exploit 1
Advisory 1
Sources
- CVE-2020-36657 · CVE Program
- CVE-2020-36657 · NVD
- FIRST EPSS
- GHSA-h9jm-ppr9-845g · GitHub Advisory Database · CC BY 4.0
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