CVE-2011-3630

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-04-22. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Hardlink before 0.1.2 suffer from multiple stack-based buffer overflow flaws because of the way directory trees with deeply nested directories are processed. A remote attacker could provide a specially-crafted directory tree, and trick the local user into consolidating it, leading to hardlink executable crash, or, potentially arbitrary code execution with the privileges of the user running the hardlink executable.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
84.1%
KEV
Not listed

Published

November 26, 2019

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Jul 4, 2026
Patch available. Sources: redhat.
generic

oss-security - Re: hardlink(1) has buffer overflows, is unsafe on changing trees

https://www.openwall.com/lists/oss-security/2011/10/20/6
generic

CVE-2011-3630

https://security-tracker.debian.org/tracker/CVE-2011-3630
redhat Patch Available

746709 – (CVE-2011-3630) CVE-2011-3630 hardlink: Multiple stack-based buffer overflows when run on a tree with deeply nested directories

Affected: Red Hat Enterprise Linux 5 and 6.

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3630
generic Patch Available

#645516 - hardlink: Security issue on changing trees - Debian Bug report logs

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645516
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/cve-2011-3630

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 21:48 UTCEG score recompute
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2011-3630?
CVE-2011-3630 is a high vulnerability published on November 26, 2019. Hardlink before 0.1.2 suffer from multiple stack-based buffer overflow flaws because of the way directory trees with deeply nested directories are processed. A remote attacker could provide a specially-crafted directory tree, and trick the local user into consolidating it, leading to hardlink…
When was CVE-2011-3630 disclosed?
CVE-2011-3630 was first published in the National Vulnerability Database on November 26, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-3630 actively exploited?
CVE-2011-3630 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2011-3630?
CVE-2011-3630 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2011-3630?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3630, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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