NASM Netwide Assember 2.17rc0 preproc.c parse_smacro_template null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in NASM Netwide Assember 2.17rc0. This issue affects the function parse_smacro_template of the file preproc.c. Executing a manipulation can lead to null pointer dereference. This vulnerability appears as CVE-2025-8844. The attack requires local access. In addition, an exploit is available.

Detailsinfo

A vulnerability has been found in NASM Netwide Assember 2.17rc0 and classified as problematic. This vulnerability affects the function parse_smacro_template of the file preproc.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The advisory is available at bugzilla.nasm.us. This vulnerability was named CVE-2025-8844. The exploitation appears to be easy. Local access is required to approach this attack. Technical details and also a public exploit are known.

It is possible to download the exploit at drive.google.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 259923 (Linux Distros Unpatched Vulnerability : CVE-2025-8844), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (259923). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

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: 4.0
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 259923
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-8844

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/10/2025 Advisory disclosed
08/10/2025 +0 days VulDB entry created
09/15/2025 +36 days VulDB entry last update

Sourcesinfo

Advisory: 3392936
Status: Not defined

CVE: CVE-2025-8844 (🔒)
GCVE (CVE): GCVE-0-2025-8844
GCVE (VulDB): GCVE-100-319378
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/10/2025 18:02
Updated: 09/15/2025 17:43
Changes: 08/10/2025 18:02 (57), 08/31/2025 17:23 (2), 09/15/2025 17:43 (41)
Complete: 🔍
Submitter: xdcao
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #623187: nasm NASM version 2.17rc0 compiled on Jul 20 2025 and the newest master (888d9ab) Memory Corruption (by xdcao)

Duplicate

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