CVE-2009-0255: n/a vulnerability

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 through 4.2....

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 04:24 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE affects very old TYPO3 versions where the Install tool generated the site encryption key with weak randomness. If a still-running site used such a key, attackers may have a better chance of cracking it. Business urgency depends on whether any legacy TYPO3 4.0, 4.1, or 4.2 systems remain online. Exposure is most likely in legacy TYPO3 deployments from the 4.0, 4.1, or 4.2 branches, especially systems originally installed with the affected Install tool and never re-keyed or upgraded. Treat this as a legacy-system exposure issue. It is not backed by active exploitation evidence in the bundle, but any internet-facing unsupported TYPO3 4.x site should be prioritized for upgrade, migration, or retirement. Mitigation focus: Identify any TYPO3 4.0, 4.1, or 4.2 installations.; Review TYPO3-SA-2009-001 for vendor remediation guidance.; Review Debian DSA-1711 if TYPO3 came from Debian packages..

Prepared: Jun 28, 2026, 11:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 22, 2009, 23:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
typo3-installtool-weak-security(48132)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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