ipavlov 7-Zip up to 24.x RAR5 heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in ipavlov 7-Zip up to 24.x. It has been rated as critical. This affects an unknown part of the component RAR5 Handler. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2025-53816. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in ipavlov 7-Zip up to 24.x and classified as critical. Affected by this vulnerability is an unknown function of the component RAR5 Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect availability. The summary by CVE is:

7-Zip is a file archiver with a high compression ratio. Zeroes written outside heap buffer in RAR5 handler may lead to memory corruption and denial of service in versions of 7-Zip prior to 25.0.0. Version 25.0.0 contains a fix for the issue.

The advisory is shared at securitylab.github.com. This vulnerability is known as CVE-2025-53816 since 07/09/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 242639 (7-Zip < 25.00), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 25.0.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (242639), EUVD (EUVD-2025-21791) and CERT Bund (WID-SEC-2025-1590). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • NetApp ActiveIQ Unified Manager
  • Open Source 7-Zip

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 242639
Nessus Name: 7-Zip < 25.00

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: 7-Zip 25.0.0

Timelineinfo

07/09/2025 CVE reserved
07/17/2025 +8 days Advisory disclosed
07/17/2025 +0 days VulDB entry created
09/01/2025 +46 days VulDB entry last update

Sourcesinfo

Advisory: GHSL-2025-058
Status: Confirmed

CVE: CVE-2025-53816 (🔒)
GCVE (CVE): GCVE-0-2025-53816
GCVE (VulDB): GCVE-100-316813
EUVD: 🔒
CERT Bund: WID-SEC-2025-1590 - 7-Zip: Mehrere Schwachstellen erm&ouml;glichen Denial of Service

Entryinfo

Created: 07/17/2025 20:31
Updated: 09/01/2025 10:08
Changes: 07/17/2025 20:31 (70), 07/17/2025 21:50 (1), 07/19/2025 03:35 (3), 07/24/2025 20:34 (2), 08/22/2025 06:13 (11), 09/01/2025 10:08 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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