CVE-2009-4769Httpdx Vulnerability
Multiple format string vulnerabilities in the tolog function in httpdx 1.4, 1.4.5, 1.4.6, 1.4.6b, and 1.5 allow (1) remote attackers to execute arbitrary code via format string specifiers in a GET request to the HTTP server component when logging is enabled, and allow (2) remote…
Published Apr 20, 2010 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2009-4769 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Httpdx (Jasper).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 38% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
38%
Higher than 98.5% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
58/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
4
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Advisories And Exploit References
- advisoryADV-2009-3312
Description
Multiple format string vulnerabilities in the tolog function in httpdx 1.4, 1.4.5, 1.4.6, 1.4.6b, and 1.5 allow (1) remote attackers to execute arbitrary code via format string specifiers in a GET request to the HTTP server component when logging is enabled, and allow (2) remote authenticated users to execute arbitrary code via format string specifiers in a PWD command to the FTP server component.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| HttpdxJasper | 1.4, 1.4.5, 1.4.6, 1.4.6b, 1.5 | n/a |
Timeline
Publicly disclosed
Apr 20, 2010
Last updated
Apr 28, 2026
Weakness Type
- CWE-134 Use of Externally-Controlled Format String
References
- advisoryADV-2009-3312
- exploitMSF httpdx_tolog_format.rb
- exploitMSF httpdx_tolog_format.rb
- exploitExploitDB-16732
- exploitExploitDB-16794
FAQ
Common Questions.
Multiple format string vulnerabilities in the tolog function in httpdx 1.4, 1.4.5, 1.4.6, 1.4.6b, and 1.5 allow (1) remote attackers to execute arbitrary code via format string specifiers in a GET request to the HTTP server component when logging is enabled, and allow (2) remote authenticated users to execute arbitrar…
Affected: Httpdx (Jasper) versions 1.4, 1.4.5, 1.4.6, 1.4.6b, 1.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2009-4769 On Your Attack Surface?
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