CVE-2025-46394: In tar in BusyBox through 1.37.0, a TAR archive can have filenames hidden from a listing through the use of terminal escape sequences.

lowCVSS 3.2CVE-2025-46394

CSIRTS triage

vendor: BusyBox product: BusyBox Information disclosureaffected: through 1.37.0

What: TAR archives can hide filenames from listing output by embedding terminal escape sequences in filenames.
Who is affected: Systems using BusyBox tar tool to extract or list untrusted TAR archives.
Urgency: Low priority; requires user to interpret terminal output and does not affect file extraction or permissions.
Action: Update BusyBox to version after 1.37.0 once available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: low — CVSS 3.2
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-46394

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-463940.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-46394	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

low[UPDATE] [low] BusyBox: Multiple vulnerabilitiescert-bund
criticalSiemens SINEC OScisa

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