5.5
MEDIUM
CVE-2025-2849
UPX Heap-Based Buffer Overflow Vulnerability
Description

A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is recommended to apply a patch to fix this issue.

INFO

Published Date :

March 27, 2025, 2:15 p.m.

Last Modified :

April 11, 2025, 4:09 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2025-2849 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Upx_project upx
1 Upx upx
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-2025-2849.

URL Resource
https://github.com/upx/upx/commit/e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2 Patch
https://github.com/upx/upx/issues/898 Exploit Issue Tracking
https://github.com/upx/upx/issues/898#issuecomment-2734082143 Exploit Issue Tracking
https://github.com/user-attachments/files/19307868/input.zip Product
https://vuldb.com/?ctiid.301494 Permissions Required VDB Entry
https://vuldb.com/?id.301494 Third Party Advisory VDB Entry
https://vuldb.com/?submit.522371 Third Party Advisory VDB Entry
https://github.com/upx/upx/issues/898#issuecomment-2734082143 Exploit Issue Tracking

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-2025-2849 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-2849 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]

    Apr. 11, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:* versions up to (including) 5.0.0
    Added Reference Type VulDB: https://github.com/upx/upx/commit/e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2 Types: Patch
    Added Reference Type VulDB: https://github.com/upx/upx/issues/898 Types: Exploit, Issue Tracking
    Added Reference Type CISA-ADP: https://github.com/upx/upx/issues/898#issuecomment-2734082143 Types: Exploit, Issue Tracking
    Added Reference Type VulDB: https://github.com/upx/upx/issues/898#issuecomment-2734082143 Types: Exploit, Issue Tracking
    Added Reference Type VulDB: https://github.com/user-attachments/files/19307868/input.zip Types: Product
    Added Reference Type VulDB: https://vuldb.com/?ctiid.301494 Types: Permissions Required, VDB Entry
    Added Reference Type VulDB: https://vuldb.com/?id.301494 Types: Third Party Advisory, VDB Entry
    Added Reference Type VulDB: https://vuldb.com/?submit.522371 Types: Third Party Advisory, VDB Entry
  • New CVE Received by [email protected]

    Mar. 27, 2025

    Action Type Old Value New Value
    Added Description A vulnerability, which was classified as problematic, was found in UPX up to 5.0.0. Affected is the function PackLinuxElf64::un_DT_INIT of the file src/p_lx_elf.cpp. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The patch is identified as e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2. It is recommended to apply a patch to fix this issue.
    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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 CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    Added CVSS V2 (AV:L/AC:L/Au:S/C:N/I:N/A:P)
    Added CWE CWE-119
    Added CWE CWE-122
    Added Reference https://github.com/upx/upx/commit/e0b6ff192412f5bb5364c1948f4f6b27a0cd5ea2
    Added Reference https://github.com/upx/upx/issues/898
    Added Reference https://github.com/upx/upx/issues/898#issuecomment-2734082143
    Added Reference https://github.com/user-attachments/files/19307868/input.zip
    Added Reference https://vuldb.com/?ctiid.301494
    Added Reference https://vuldb.com/?id.301494
    Added Reference https://vuldb.com/?submit.522371
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Mar. 27, 2025

    Action Type Old Value New Value
    Added Reference https://github.com/upx/upx/issues/898#issuecomment-2734082143
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-2849 is associated with the following CWEs:

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: Apr. 22, 2025 5:15