APC UPS daemon, apcupsd, saves its process ID in a world-writable file, which allows…
Priority LOW 13Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
APC UPS daemon, apcupsd, saves its process ID in a world-writable file, which allows local users to kill an arbitrary process by specifying the target process ID in the apcupsd.pid file.
Why it matters now
EPSS 0.00858 58th 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
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0040
- 2026-10-03 Alias added: GHSA-qp9g-233f-wxgh
References
Advisory 1
More Apcupsd vulnerabilities
- TI-2003-00094 Multiple buffer overflows in apcupsd before 3.8.6, and 3.10.x before 3.10.5, may allow… CVSS 2.0HIGH 7.2
Sources
- CVE-2001-0040 · CVE Program
- CVE-2001-0040 · NVD
- FIRST EPSS
- GHSA-qp9g-233f-wxgh · GitHub Advisory Database · CC BY 4.0
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