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CVE-2001-0040

21
FAUCET Score

CVE-2001-0040 describes a local denial-of-service vulnerability in apcupsd, the APC UPS daemon, affecting apc apcupsd products. The vulnerability arises because apcupsd saves its process ID in a world-writable file, allowing a local attacker to terminate an arbitrary process by manipulating the apcupsd.pid file. This has a low CVSS score of 2.1 (AV:L/AC:L/Au:N/C:N/I:N/A:P), indicating local access, low attack complexity, and a potential for partial availability impact. While not actively exploited in the wild and not on the KEV catalog, an ExploitDB entry (EDB-251) exists, and the CVE has garnered significant community discussion with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
3.7.2CPE matchmatch criteria
cpe:2.3:a:apc:apcupsd:3.7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-251 · Jan 15, 2001
This CVE's current EPSS score of 0.0086 is in the 88th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/bugtraq/2000-12/0066.html
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/5654
linux-mandrake.com / en/security/MDKSA-2000-077.php3
securityfocus.com / bid/2070
PatchVendor Advisory