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CVE-2015-3999: Piriform CCleaner 3.26.0.1988 through 5.02.5101 writes the filenames to disk when overwriting files, which...

Piriform CCleaner 3.26.0.1988 through 5.02.5101 writes the filenames to disk when overwriting files, which allows local users to obtain sensitive information by searching unallocated disk space.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

Older CCleaner versions could leave names of files it tried to wipe recoverable from unallocated disk space. The exposure is about sensitive filenames, not confirmed file contents. Business risk is highest on shared, seized, resold, or forensically examined devices where filenames alone can reveal confidential activity. Exposure is likely limited to systems that used affected CCleaner versions for file wiping, especially multi-user workstations or devices later subjected to forensic review. Low immediate urgency unless affected CCleaner was used on sensitive or shared endpoints. Prioritize inventory and retirement workflows over emergency response. Mitigation focus: Inventory endpoints for CCleaner 3.26.0.1988 through 5.02.5101.; Remove affected versions or follow current vendor guidance for replacement.; Do not rely on affected CCleaner wiping for confidentiality guarantees..

Prepared

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2015-3999 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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
1Source links

CVSS and timeline data

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

Source materials

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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