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CVE-2001-0061

18
FAUCET Score

CVE-2001-0061 describes a privilege escalation vulnerability in the procfs filesystem of FreeBSD and potentially other operating systems. It allows local users to gain root privileges by manipulating per-process memory and control files. The attack involves a parent process retaining access to a child's address space while the child executes a privileged process. This vulnerability has a CVSS score of 7.2 (HIGH), indicating a local attack vector with low complexity and complete confidentiality, integrity, and availability impacts. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.5.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:3.5.1:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*

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 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 33rd percentile among its peer group of 3,241 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-00:77.procfs.v1.1.asc
PatchVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/6106
osvdb.org / 1697
securityfocus.com / bid/2130
PatchVendor Advisory