Threats / 7-Zip / CVE-2025-0411
CVE-2025-0411
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
7-Zip vulnerability
7-Zip fails to properly enforce Mark-of-the-Web security protections, allowing remote attackers to bypass this mechanism and execute arbitrary code with user privileges.
Verdict
Today item — known-exploited.
A protection mechanism failure in 7-Zip's handling of Mark-of-the-Web allows remote code execution when processing untrusted archives. The vulnerability is actively exploited in the wild.
CISA KEV Yes · 2025-02-065EPSS 0.67071 (verify live)6Exploit Public PoC7CVSS 73CISA SSVC Exploitation: active · Automatable: no · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Public proof-of-concept exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
10 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 2025-02-06).
Probability (EPSS)
EPSS 0.67071 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7 (CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H) · Affected: 7-Zip, 7-Zip. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.0, set at disclosure.
Weakness (CWE)
Mapped to CWE-693 Protection Mechanism Failure.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 12 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
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
I craft a malicious archive and deliver it to a target via email or web download, relying on the victim's browser or email client to strip the Mark-of-the-Web indicator.
Business
End users receive seemingly safe files that execute attacker code upon extraction, compromising workstations and enabling lateral movement into corporate networks.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the bypassed security feature to execute arbitrary code in the context of the user opening the archive in 7-Zip.
Business
Attackers gain immediate code execution at user privilege level, allowing data theft, malware installation, and persistence mechanisms on affected systems.
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