CVE-2009-1386

Exp

ssl/s3_pkt.c in OpenSSL before 0.9.8i allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a DTLS ChangeCipherSpec packet that occurs before ClientHello.

Published: 2009-06-04 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1386 is rated High Exploit Risk (68.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 47.63%, 98th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-1386

EDB-ID Source Kind Published Link
8873 exploit_db edb 2009-06-04 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-1386

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-08 48.62% 47.63% -0.99%
2 2025-12-28 49.61% 48.62% -1.00%
3 2025-12-27 — 49.61% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1386

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-1386

OS Trackers for CVE-2009-1386

vendor priority summary link
debian low CVE-2009-1386 low priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-1386
redhat medium — https://access.redhat.com/security/cve/CVE-2009-1386
suse medium CVE-2009-1386 severity moderate: SUSE including 164 source package names (compat-openssl098, libopenssl-1_0_0-devel, …), 379 product×package rows across 59 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (59 product lines)): Fixed 207, Known Not Affected 172. https://www.suse.com/security/cve/CVE-2009-1386/
ubuntu medium CVE-2009-1386 medium priority: Ubuntu including 1 source packages (openssl), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): released 5. https://ubuntu.com/security/CVE-2009-1386

Affected software / configurations for CVE-2009-1386

Vendor Product Version Raw CPE
openssl openssl > 0.9.8, < 0.9.8i cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
redhat openssl 0.9.6-15 cpe:2.3:a:redhat:openssl:0.9.6-15:*:*:*:*:*:*:*
redhat openssl 0.9.6b-3 cpe:2.3:a:redhat:openssl:0.9.6b-3:*:*:*:*:*:*:*
redhat openssl 0.9.7a-2 cpe:2.3:a:redhat:openssl:0.9.7a-2:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
canonical ubuntu_linux 9.04 cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*

References for CVE-2009-1386

URL Tags
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc Broken Link Third Party Advisory
http://cvs.openssl.org/chngview?cn=17369 Broken Link Patch Third Party Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444 Broken Link Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html Third Party Advisory
http://lists.vmware.com/pipermail/security-announce/2010/000082.html Mailing List Third Party Advisory
http://rt.openssl.org/Ticket/Display.html?id=1679&user=guest&pass=guest Third Party Advisory Vendor Advisory
http://secunia.com/advisories/35571 Not Applicable Third Party Advisory
http://secunia.com/advisories/35685 Not Applicable Third Party Advisory
http://secunia.com/advisories/35729 Not Applicable Third Party Advisory
http://secunia.com/advisories/36533 Not Applicable Third Party Advisory
http://secunia.com/advisories/38794 Not Applicable Third Party Advisory
http://secunia.com/advisories/38834 Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/06/02/1 Mailing List Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2009-1335.html Third Party Advisory
http://www.securityfocus.com/bid/35174 Broken Link Exploit Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-792-1 Third Party Advisory
http://www.vupen.com/english/advisories/2010/0528 Permissions Required Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/50963 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11179 Broken Link Tool Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7469 Broken Link Tool Signature
https://www.exploit-db.com/exploits/8873 Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence