Libming
CVE-2025-29491
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Memory allocation limits
|
| Impact | CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.25%. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAIv1 – Mar 28, 2026
An allocation-size-too-big error in the parseSWF_DEFINEBINARYDATA function of libming v0.48 allows attackers to cause a Denial of Service (DoS) via supplying a crafted SWF file. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified under CWE-789. An allocation-size-too-big error in the parseSWF_DEFINEBINARYDATA function of libming v0.48 allows attackers to cause a Denial of Service (DoS) via supplying a crafted SWF file. Affected products include: Libming.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
An allocation-size-too-big error in the parseSWF_DEFINEBINARYDATA function of libming v0.48 allows attackers to cause a Denial of Service (DoS) via supplying a crafted SWF file.
Executive ViewAI
Organizations using the parseSWF_DEFINEBINARYDATA function of libming should be aware of notable risk from CVE-2025-29491 rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
Buffer Overflow vulnerability in libming version 0.4.8, allows attackers to execute arbitrary code and obtain sensitive
Ming (aka libming) 0.4.8 has a heap-based buffer over-read (2 bytes) in the function decompileIF() in decompile.c. Rated
Ming (aka libming) 0.4.8 has a heap-based buffer over-read (8 bytes) in the function decompileIF() in decompile.c. Rated
Ming (aka libming) 0.4.8 has an out of bounds read vulnerability in the function OpCode() in the decompile.c file in lib
libming listswf 0.4.7 was discovered to contain a buffer overflow in the parseSWF_DEFINEFONTINFO() function at parser.c.
libming v0.4.8 was discovered to contain a stack buffer overflow via the function makeswf_preprocess at /util/makeswf_ut
Ming (aka libming) 0.4.8 has a heap-based buffer over-read in the function decompile_SWITCH() in decompile.c. Rated high
Ming (aka libming) 0.4.8 has an out of bounds write vulnerability in the function strcpyext() in the decompile.c file in
Ming (aka libming) 0.4.8 has a NULL pointer dereference in the function getString() in the decompile.c file in libutil.a
The readBytes function in util/read.c in libming through 0.4.8 allows remote attackers to have unspecified impact via a
The parseSWF_ACTIONRECORD function in util/parser.c in libming through 0.4.8 allows remote attackers to have unspecified
libming 0.4.8 has a NULL pointer dereference in the getName function of the decompile.c file, a different vulnerability
GitHub PoC
Exploit-DB