swftools up to 0.9.2 wav2swf lib/wav.c wav_convert2mono out-of-bounds

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in swftools up to 0.9.2. The affected element is the function wav_convert2mono in the library lib/wav.c of the component wav2swf. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2025-6271. Attacking locally is a requirement. Furthermore, an exploit is available.

Detailsinfo

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 with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-6271. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 264384 (Linux Distros Unpatched Vulnerability : CVE-2025-6271), 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 databases at Tenable (264384) and EUVD (EUVD-2025-18692). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Programming Tool Software

Name

swftools

Version

License

open-source

Website

Product: https://github.com/swftools/swftools/

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: 3.3
VulDB Meta Temp Score: 3.1

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

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 264384
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-6271

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/19/2025 Advisory disclosed
06/19/2025 +0 days VulDB entry created
09/11/2025 +84 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 239
Status: Not defined

CVE: CVE-2025-6271 (🔒)
GCVE (CVE): GCVE-0-2025-6271
GCVE (VulDB): GCVE-100-313275
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/19/2025 08:27
Updated: 09/11/2025 09:01
Changes: 06/19/2025 08:27 (57), 06/19/2025 20:40 (30), 06/19/2025 22:31 (1), 06/24/2025 05:19 (1), 09/11/2025 09:01 (2)
Complete: 🔍
Submitter: JJLeo
Cache ID: 216:5F6:103

Submitinfo

Accepted

Submit #593005: swftools swftools 0.9.2 (commit c6a18ab) Out-of-Bounds Read (by JJLeo)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.