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CVE-2001-1017

18
FAUCET Score

CVE-2001-1017 describes a critical vulnerability in the rmuser utility within FreeBSD versions 4.2 and 4.3. This flaw causes a world-readable copy of the master.passwd file to be created during user removal, allowing local attackers to steal password hashes and potentially gain elevated privileges. With a CVSS score of 7.2 (HIGH), this vulnerability is easily exploitable locally with low complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no known active exploitation, publicly available exploit code, or significant community discussion surrounding this nearly two-decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
4.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 33rd percentile among its peer group of 3,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:59.rmuser.v1.1.asc
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/7086
osvdb.org / 1947
securityfocus.com / bid/3282
PatchVendor Advisory