HIGH
CVE-2009-0255
CWE-330Published: January 22, 2009· Updated: Jun 16, 2026
7.5
CVSS v3.1
Official Description
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.
Technical Analysis
CVE-2009-0255 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (12)
→
http://secunia.com/advisories/33617Broken Link · Vendor Advisory
→
http://secunia.com/advisories/33679Broken Link · Vendor Advisory
→
http://www.debian.org/security/2009/dsa-1711Mailing List
→
http://www.securityfocus.com/bid/33376Broken Link · Third Party Advisory · VDB Entry
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/48132Third Party Advisory · VDB Entry
→
http://secunia.com/advisories/33617Broken Link · Vendor Advisory
→
http://secunia.com/advisories/33679Broken Link · Vendor Advisory
→
http://www.debian.org/security/2009/dsa-1711Mailing List
→
http://www.securityfocus.com/bid/33376Broken Link · Third Party Advisory · VDB Entry
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/48132Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2009-0255
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-330
CISA KEVNo
Affected2 vendor(s)
PublishedJan 22, 2009
Related CVEs (CWE-330)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-0255 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.