Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2009-0789

18
FAUCET Score

CVE-2009-0789 describes a denial-of-service vulnerability in OpenSSL versions prior to 0.9.8k, specifically affecting WIN64 and other platforms. This flaw allows remote attackers to crash an application by providing a malformed ASN.1 structure within the public key of a certificate, such as an RSA public key. The vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.8jCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
0.9.1cCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.1c:*:*:*:*:*:*:*
0.9.2bCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.2b:*:*:*:*:*:*:*
0.9.3CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.3:*:*:*:*:*:*:*
0.9.3aCPE matchmatch criteria
cpe:2.3:a:openssl:openssl:0.9.3a:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.59%
Probability of exploitation in next 30 days
EPSS Percentile
83.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0259 is in the 76th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2009-0789

CVE-2009-0789

References

ftp.netbsd.org / pub/NetBSD/security/advisories/NetBSD-SA2009-008.txt.asc
lists.apple.com / archives/security-announce/2009/Sep/msg00004.html
lists.opensuse.org / opensuse-security-announce/2009-05/msg00000.html
lists.opensuse.org / opensuse-security-announce/2011-07/msg00013.html
lists.opensuse.org / opensuse-security-announce/2011-07/msg00014.html
marc.info
marc.info
secunia.com / advisories/34411
Vendor Advisory
secunia.com / advisories/34460
Vendor Advisory
secunia.com / advisories/34666
secunia.com / advisories/35065
secunia.com / advisories/35380
Vendor Advisory
secunia.com / advisories/35729
Vendor Advisory
secunia.com / advisories/36701
Vendor Advisory
secunia.com / advisories/42724
Vendor Advisory
secunia.com / advisories/42733
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/49433
kb.bluecoat.com / index
sourceforge.net / project/shownotes.php
support.apple.com / kb/HT3865
voodoo-circle.sourceforge.net / sa/sa-20090326-01.html
openssl.org / news/secadv_20090325.txt
Vendor Advisory
osvdb.org / 52866
php.net / archive/2009.php
securityfocus.com / bid/34256
Patch
vupen.com / english/advisories/2009/0850
Vendor Advisory
vupen.com / english/advisories/2009/1020
Vendor Advisory
vupen.com / english/advisories/2009/1175
Vendor Advisory
vupen.com / english/advisories/2009/1548
Vendor Advisory