CVE-2025-6271
Swftools wav2swf Out-of-Bounds Read Vulnerability
Description
A vulnerability, which was classified as problematic, was found in swftools up to 0.9.2. This affects the function wav_convert2mono in the library lib/wav.c of the component wav2swf. The manipulation leads to out-of-bounds read. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
INFO
Published Date :
June 19, 2025, 6:15 p.m.
Last Modified :
July 2, 2025, 7:03 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update swftools to the latest available version.
- Apply vendor-provided patches for swftools.
- Restrict local access to the affected system.
- Monitor system activity for suspicious behavior.
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-2025-6271.
| URL | Resource |
|---|---|
| https://github.com/swftools/swftools/issues/239 | Exploit Third Party Advisory |
| https://github.com/user-attachments/files/19415662/wav2swf_crash.txt | Exploit |
| https://vuldb.com/?ctiid.313275 | Permissions Required Third Party Advisory VDB Entry |
| https://vuldb.com/?id.313275 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.593005 | Third Party Advisory VDB Entry |
| https://github.com/swftools/swftools/issues/239 | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-6271 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-2025-6271
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-2025-6271 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-6271 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]
Jul. 02, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:swftools:swftools:*:*:*:*:*:*:*:* versions up to (excluding) 0.9.2 Added Reference Type CISA-ADP: https://github.com/swftools/swftools/issues/239 Types: Exploit, Third Party Advisory Added Reference Type VulDB: https://github.com/swftools/swftools/issues/239 Types: Exploit, Third Party Advisory Added Reference Type VulDB: https://github.com/user-attachments/files/19415662/wav2swf_crash.txt Types: Exploit Added Reference Type VulDB: https://vuldb.com/?ctiid.313275 Types: Permissions Required, Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.313275 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.593005 Types: Third Party Advisory, VDB Entry -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 23, 2025
Action Type Old Value New Value Added Reference https://github.com/swftools/swftools/issues/239 -
New CVE Received by [email protected]
Jun. 19, 2025
Action Type Old Value New Value Added Description A vulnerability, which was classified as problematic, was found in swftools up to 0.9.2. This affects the function wav_convert2mono in the library lib/wav.c of the component wav2swf. The manipulation leads to out-of-bounds read. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. 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: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 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-125 Added Reference https://github.com/swftools/swftools/issues/239 Added Reference https://github.com/user-attachments/files/19415662/wav2swf_crash.txt Added Reference https://vuldb.com/?ctiid.313275 Added Reference https://vuldb.com/?id.313275 Added Reference https://vuldb.com/?submit.593005