Threats / Microsoft / CVE-2007-0671
CVE-2007-0671
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Microsoft Office vulnerability
Microsoft Office Excel remote code execution vulnerability triggered by opening specially crafted files, exploitable via email attachment or malicious website delivery.
Verdict
Today item — known-exploited.
A remote code execution flaw in Excel allows attackers to execute arbitrary code when victims open malicious spreadsheet files. Active exploitation in the wild confirms practical attack viability.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
6 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-08-12).
Probability (EPSS)
EPSS 0.42139 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Microsoft, Office. Confirm exact fixed builds in the vendor advisory.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
Craft a malicious Excel file with embedded exploit code
Business
Attacker gains ability to deliver weaponized document at scale
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Distribute file via email attachment or compromised website
Business
Social engineering and web-based delivery lower victim friction
3
Lateral reach — past segmentation narrative 3
Attacker
Victim opens file in vulnerable Excel application
Business
Exploit triggers automatically without additional user interaction
4
Data at risk — exfiltration narrative 4
Attacker
Execute arbitrary code with victim's privileges
Business
Attacker gains foothold for lateral movement, data theft, or persistence
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05