CVE-2009-0255
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0...
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.
- Record
CVE-2009-0255- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
CVE List No score
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.
- Record
CVE-2009-0255- Updated
- 2026-11-02
EUVDEUVD-2009-0263 No score
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.
- Record
EUVD-2009-0263- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7x3q-vm79-8fcc
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0...
The System extension Install tool in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 creates the encryption key with an insufficiently random seed, which makes it easier for attackers to crack the key.
- Record
GHSA-7x3q-vm79-8fcc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3-srcDebian:4.0 From an advisory covering 4 CVEs |
before 4.0.2+debian-7 | 4.0.2+debian-7 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | TYPO3 sa-2009-001 Weak Encryption Key File Disclosure | 2009-01-20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-0255 is a high vulnerability (CVSS 7.5) in Typo3, published January 22, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.44%, the 95th percentile. No source names a fixed version.
References
typo3.org/teams/security/security-bulletins/typo3-sa-2009-001
secunia.com/advisories/33617
debian.org/security/2009/dsa-1711
exchange.xforce.ibmcloud.com/vulnerabilities/48132
securityfocus.com/bid/33376
nvd.nist.gov/vuln/detail/CVE-2009-0255
github.com/advisories/GHSA-7x3q-vm79-8fcc