Is CVE-2011-3630 being actively exploited?

CVE-2011-3630 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-3630?

CVE-2011-3630 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2011-3630

HIGH · CVSS 8.8EPSS 2.7%EU EUVD

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.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 2.7% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-3589)
Published: November 26, 2019
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-3589 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
debian / debian linux
debian / debian linux
hardlink project / hardlink
redhat / enterprise linux
redhat / enterprise linux

Certified products that may be affected

7 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical
Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
Red Hat Enterprise Linux 5 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 1385 - historical
Red Hat Enterprise Linux 5 OpenSwan Cryptographic Module - Red Hat®, Inc. - FIPS 140 1386 - historical
Red Hat Enterprise Linux 5 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 1387 - historical

See all 7 in the Security Certifications Explorer.

References

https://access.redhat.com/security/cve/cve-2011-3630(Third Party Advisory)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=645516(Issue Tracking, Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3630(Issue Tracking, Patch, Third Party Advisory)
https://security-tracker.debian.org/tracker/CVE-2011-3630(Third Party Advisory)
https://www.openwall.com/lists/oss-security/2011/10/20/6(Mailing List, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain