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CVE-2025-8842

Good to know:

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Date: August 11, 2025

A vulnerability has been found in NASM Netwide Assember 2.17rc0. Affected by this issue is the function do_directive of the file preproc.c. The manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Severity Score

Related Resources (7)

https://bugzilla.nasm.us/show_bug.cgi?id=3392933
https://vuldb.com/?submit.623184
https://vuldb.com/?id.319376
https://nvd.nist.gov/vuln/detail/CVE-2025-8842
https://drive.google.com/file/d/11vEV1vMHXO4BrDGhvWAMm0Qo1woiUwVV/view?usp=drive_link
https://vuldb.com/?ctiid.319376
https://www.mend.io/vulnerability-database/CVE-2025-8842

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version https://github.com/netwide-assembler/nasm.git - no_fix

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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