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CVE-2011-3630

28
FAUCET Score

CVE-2011-3630 describes multiple stack-based buffer overflow vulnerabilities in Hardlink before version 0.1.2, affecting various Debian and Red Hat distributions. An unauthenticated remote attacker could exploit this by crafting a deeply nested directory tree and tricking a local user into processing it. This could lead to a denial of service (crash) or, more critically, arbitrary code execution with the privileges of the user running the hardlink executable. Despite its high CVSS score of 8.8, indicating a severe risk, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1.2CPE matchmatch criteria
cpe:2.3:a:hardlink_project:hardlink:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.66%
Probability of exploitation in next 30 days
EPSS Percentile
84.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0266 is in the 83rd percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2011-3630Moderate

hardlink: Multiple stack-based buffer overflows when run on a tree with deeply nested directories

Oct 15, 2011

References

access.redhat.com / security/cve/cve-2011-3630
Third Party Advisory
bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
security-tracker.debian.org / tracker/CVE-2011-3630
Third Party Advisory
openwall.com / lists/oss-security/2011/10/20/6
Mailing ListThird Party Advisory