NVD / CVE Program· CNA zdi

CVE-2025-11001: 7-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability

Noroxi assessment

Priority: Monitor (action score 39/100)

Public proof-of-concept code exists (Exploit-DB, GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 27.3% (FIRST EPSS); higher than 98% of all records.
Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
Fixed version: 7zip (Debian:12) 22.01+really25.01+dfsg-0+deb12u1; p7zip (Debian:12) 16.02+really25.01+dfsg-0+deb12u1; 7zip (Debian:13) 25.01+dfsg-1~deb13u1.

Low priority for now. Upgrade to 7zip (Debian:12) 22.01+really25.01+dfsg-0+deb12u1; p7zip (Debian:12) 16.02+really25.01+dfsg-0+deb12u1; 7zip (Debian:13) 25.01+dfsg-1~deb13u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

7-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this product is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the handling of symbolic links in ZIP files. Crafted data in a ZIP file can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of a service account. Was ZDI-CAN-26753.

HighCVSS 7.8 · v3.1—Proof of concept Fix available

BDU:2025-12910

Published: Nov 19, 2025
Updated: Oct 19, 2026
EPSS: 27.3% · 98th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 8 / 30 · 27.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.8
CNA · zdi: 7.0; 0.8 point gap

CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
7-zip	7-zip	cpe:2.3:a:7-zip:7-zip
microsoft	windows	cpe:2.3:o:microsoft:windows

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

7-zip 7-zip24.09

Versions reported by the vendor

Affected version ranges reported by the assigning authority (zdi). Independent of NVD's CPE analysis and usually ahead of it.

7-Zip 7-Zip
- 24.09 (x64)affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	7zip	before 22.01+really25.01+dfsg-0+deb12u1	22.01+really25.01+dfsg-0+deb12u1
Debian:12	p7zip	before 16.02+really25.01+dfsg-0+deb12u1	16.02+really25.01+dfsg-0+deb12u1
Debian:13	7zip	before 25.01+dfsg-1~deb13u1	25.01+dfsg-1~deb13u1
Debian:13	p7zip	before 16.02+transitional.1	16.02+transitional.1
Debian:14	7zip	before 25.00+dfsg-1	25.00+dfsg-1

Same product

7-zip: all records

Other highest-scoring records for the same primary product.

CVE-2025-04117-Zip Mark-of-the-Web Bypass VulnerabilityKEV
78This week
CVE-2023-31102Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
47Plan
CVE-2008-6536Unspecified vulnerability in 7-zip before 4.5.7 has unknown impact and remote attack vectors, as demonstrated by the PROTOS GENOME test suit
41Plan

Published before and after this one in the same product

← EarlierCVE-2025-53817Jul 17, 2025 · GHSL-2025-059 - 7-Zip - Null pointer array write attempt in NArchive::NCom::CHandler::GetStream
22Monitor
← EarlierCVE-2025-55188Aug 8, 2025 · 7-Zip before 25.01 does not always properly handle symbolic links during extraction.
14Monitor
Later →CVE-2025-11002Jan 23, 2026 · 7-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
debian:7zip	22.01+really25.01+dfsg-0+deb12u1 · Debian:12	Package registry (OSV)
debian:p7zip	16.02+really25.01+dfsg-0+deb12u1 · Debian:12	Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Exploit-DB entry ×1
Proof-of-concept repository on GitHub ×6

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Exploit-DB entry	local	2026-04-08
Proof-of-concept repository on GitHub	stars:4	2025-10-14
Proof-of-concept repository on GitHub	stars:151	2025-10-15
Proof-of-concept repository on GitHub	stars:1	2025-11-20
Proof-of-concept repository on GitHub	stars:7	2025-11-22
Proof-of-concept repository on GitHub	stars:0	2025-11-22
Proof-of-concept repository on GitHub	stars:1	2025-12-12

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

First PoCOct 14, 2025-37 d
PublishedNov 19, 2025
TodayOct 30, 2026+344 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-1100265 days apart7-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability
31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:48 PM UTC

For records you follow, these changes also arrive as notifications. →

References

www.zerodayinitiative.com/advisories/ZDI-25-949/

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: zdi

CVE.org (CNA)Feb 26, 2026, 4:07 PM UTC
CISA ADPFeb 26, 2026, 4:07 PM UTC
NVDOct 19, 2026, 1:10 PM UTC
FIRST EPSSOct 29, 2026, 12:00 AM UTC
OSV / GHSAOct 30, 2026, 3:18 AM UTC
Exploit-DBOct 30, 2026, 3:17 AM UTC
PoC-in-GitHubOct 30, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.