CVE-2025-53817
7-Zip Denial of Service Null Pointer Dereference
Description
7-Zip is a file archiver with a high compression ratio. 7-Zip supports extracting from Compound Documents. Prior to version 25.0.0, a null pointer dereference in the Compound handler may lead to denial of service. Version 25.0.0 contains a fix cor the issue.
INFO
Published Date :
July 17, 2025, 7:15 p.m.
Last Modified :
Aug. 21, 2025, 7:34 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Upgrade to 7-Zip version 25.00 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-53817.
| URL | Resource |
|---|---|
| https://securitylab.github.com/advisories/GHSL-2025-059_7-Zip/ | Exploit Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2025/07/18/2 | Exploit Mailing List |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-53817 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-53817
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-53817 vulnerability anywhere in the article.
-
Daily CyberSecurity
Two Vulnerabilities in 7-Zip Could Trigger Denial of Service
Researchers have disclosed two newly identified vulnerabilities in 7-Zip, one of the world’s most widely used open-source file archivers. Both issues—CVE-2025-53816 and CVE-2025-53817—affect versions ... Read more
The following table lists the changes that have been made to the
CVE-2025-53817 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 21, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:7-zip:7-zip:*:*:*:*:*:*:*:* versions up to (excluding) 25.00 Added Reference Type GitHub, Inc.: https://securitylab.github.com/advisories/GHSL-2025-059_7-Zip/ Types: Exploit, Third Party Advisory Added Reference Type GitHub, Inc.: https://www.openwall.com/lists/oss-security/2025/07/18/2 Types: Exploit, Mailing List -
CVE Modified by [email protected]
Jul. 18, 2025
Action Type Old Value New Value Added Reference https://www.openwall.com/lists/oss-security/2025/07/18/2 -
New CVE Received by [email protected]
Jul. 17, 2025
Action Type Old Value New Value Added Description 7-Zip is a file archiver with a high compression ratio. 7-Zip supports extracting from Compound Documents. Prior to version 25.0.0, a null pointer dereference in the Compound handler may lead to denial of service. Version 25.0.0 contains a fix cor the issue. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-476 Added Reference https://securitylab.github.com/advisories/GHSL-2025-059_7-Zip/