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Page generated: 11 Nov 2026, 00:20 UTC
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CVE-2025-0411

TamperedChef

7-Zip Mark-of-the-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page …

Read full description
7-Zip Mark-of-the-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of archived files. When extracting files from a crafted archive that bears the Mark-of-the-Web, 7-Zip does not propagate the Mark-of-the-Web to the extracted files. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current user. Was ZDI-CAN-25456.
CVSS 7.0 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.3/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7: +1.05
  • Fresh EPSS: 47.57%: +0.24

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 26 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

The Hacker News
Press · 21 May 2026, 07:00 · ThreatsDay Bulletin: Linux Rootkits, Router 0-Day, AI Intrusions, Scam Kits and 25 New Stories - The Hacker News
Unit 42
Press · 20 May 2026, 07:00 · Tracking TamperedChef Clusters via Certificate and Code Reuse - Unit 42
Cyber Magazine
Press · 22 Jan 2026, 08:00 · Sophos: What is the TamperedChef Malvertising Campaign? - Cyber Magazine
Sophos
Press · 16 Jan 2026, 08:00 · TamperedChef serves bad ads, with infostealers as the main course - Sophos
CircleID
Press · 16 Dec 2025, 19:44 · Thumbing Through the DNS Traces of TamperedChef - CircleID
See all 26 source documents
SecurityBrief Australia
Press · 21 Nov 2025, 08:00 · TamperedChef malware uses fake installers to target key sectors - SecurityBrief Australia
The Hacker News
Press · 20 Nov 2025, 08:00 · TamperedChef Malware Spreads via Fake Software Installers in Ongoing Global Campaign - The Hacker News
Acronis
Press · 19 Nov 2025, 08:00 · Cooking up trouble: How TamperedChef uses signed apps to deliver stealthy payloads - Acronis
PhoneWorld
Press · 06 Oct 2025, 07:00 · NCERT Warns of ‘TamperedChef’ Virus Spread Through Fake PDF Editors - PhoneWorld
ProPakistani
Press · 06 Oct 2025, 07:00 · Beware of This Malicious PDF App Circulating Online: NCERT - ProPakistani
The Hacker News
Press · 29 Sep 2025, 07:00 · EvilAI Malware Masquerades as AI Tools to Infiltrate Global Organizations - The Hacker News
Cyber Press
Press · 29 Sep 2025, 07:00 · TamperedChef Malware Targets Productivity Tools to Exfiltrate Sensitive Information - Cyber Press
Field Effect
Press · 26 Sep 2025, 07:00 · Potentially Unwanted Applications (PUAs) weaponized for covert delivery - Field Effect
Mishcon de Reya LLP
Press · 10 Sep 2025, 07:00 · A wolf in sheep’s clothing: TamperedChef infostealer masquerades as PDF Editor in Google Ads campaign - Mishcon de Reya LLP
BleepingComputer
Press · 30 Aug 2025, 07:00 · TamperedChef infostealer delivered through fraudulent PDF Editor - BleepingComputer
TechRadar
Press · 29 Aug 2025, 07:00 · Hackers are distributing a fake PDF Editor loaded with TamperedChef credential stealing malware - TechRadar
The Hacker News
Press · 29 Aug 2025, 07:00 · TamperedChef Malware Disguised as Fake PDF Editors Steals Credentials and Cookies - The Hacker News
Cyber Press
Press · 28 Aug 2025, 07:00 · Weaponized PDF Editor in Latest TamperedChef Attack Compromises Sensitive Data and Login Information - Cyber Press
SOC Prime
Press · 05 Feb 2025, 08:00 · CVE-2025-0411 Detection: russian Cybercrime Groups Rely on Zero-Day Vulnerability in 7-Zip to Target Ukrainian Organizations - SOC Prime
Ars Technica
Press · 05 Feb 2025, 08:00 · 7-Zip 0-day was exploited in Russia’s ongoing invasion of Ukraine - Ars Technica
GBHackers News
Press · 04 Feb 2025, 08:00 · Hackers Exploiting 7-Zip Zero-Day Vulnerability to Deploy SmokeLoader Malware - GBHackers News
The Hacker News
Press · 04 Feb 2025, 08:00 · Russian Cybercrime Groups Exploiting 7-Zip Flaw to Bypass Windows MotW Protections - The Hacker News
Help Net Security
Press · 04 Feb 2025, 08:00 · Russian cybercrooks exploiting 7-Zip zero-day vulnerability (CVE-2025-0411) - Help Net Security
www.trendmicro.com
Press · 04 Feb 2025, 08:00 · CVE-2025-0411: Ukrainian Organizations Targeted in Zero-Day Campaign and Homoglyph Attacks - www.trendmicro.com
Kaspersky
Press · 22 Jan 2025, 08:00 · CVE-2025-0411 – vulnerability in 7-Zip - Kaspersky
Cyber Security Agency of Singapore
Press · 21 Jan 2025, 08:00 · Vulnerabilities in 7-Zip - Cyber Security Agency of Singapore

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.3 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

5

Public exploit entries / repo candidates

See 5 repos with metrics
RepositoryStarsForksLanguageUpdated
dhmosfunk/7-Zip-CVE-2025-0411-POC15438C++06 Mar 2025, 11:31
c4bsec/7-Zip-CVE-2025-0411-POC20C++29 Mar 2025, 17:47
iSee857/CVE-2025-0411-PoC10C++01 Apr 2025, 08:50
ishwardeepp/CVE-2025-0411-MoTW-PoC13C++12 Mar 2025, 11:54
RustMacrosRecoil/7-Zip-CVE-2025-0411-POC00—08 Sep 2025, 01:00
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7; EPSS 47.6%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
local access, no prior privileges, user interaction, additional attack conditions.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:59:25.323730+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
21 Jan 2025, 08:00
Published
25 Jan 2025, 04:28
Added to the CISA KEV catalog
06 Feb 2025, 00:00
Latest press mention
21 May 2026, 07:00
Score calculated
05 Nov 2026, 13:59
Name
TamperedChef
PoCs on GitHub
5 repositories
Source: CVE List V5 · CISA KEV · FIRST EPSS · GitHub · RSSVulnRadar