Mujs
CVE-2016-7504
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 1.07%. |
| Exploit ScenarioDerived | A remote attacker could access freed memory to execute arbitrary code or crash the application by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
A use-after-free vulnerability was observed in Rp_toString function of Artifex Software, Inc. Rated critical severity (CVSS 9.8), 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. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. A use-after-free vulnerability was observed in Rp_toString function of Artifex Software, Inc. MuJS before 5c337af4b3df80cf967e4f9f6a21522de84b392a. A successful exploitation of this issue can lead to code execution or denial of service condition. Affected products include: Artifex Mujs. Version information: before 5.
Know when Mujs gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
A use-after-free vulnerability was observed in Rp_toString function of Artifex Software, Inc. MuJS before 5c337af4b3df80cf967e4f9f6a21522de84b392a. A successful exploitation of this issue can lead to code execution or denial of service condition.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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
Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
A buffer overflow vulnerability was observed in divby function of Artifex Software, Inc. Rated critical severity (CVSS 9
Artifex MuJS through 1.0.7 has a use-after-free in jsrun.c because of unconditional marking in jsgc.c. Rated high severi
Artifex Software MuJS allows attackers to cause a denial of service (crash) via vectors related to incomplete escape seq
An out-of-bounds read vulnerability was observed in Sp_replace_regexp function of Artifex Software, Inc. Rated high seve
Artifex Software, Inc. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication req
The chartorune function in Artifex Software MuJS allows attackers to cause a denial of service (out-of-bounds read) via
Heap-based buffer overflow in the Fp_toString function in jsfunction.c in Artifex Software MuJS allows attackers to caus
Artifex Software, Inc. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication req
Heap out-of-bounds read and write in MuJS 1.3.6 through 1.3.8 allows attackers to corrupt process memory by supplying Ja
An integer overflow vulnerability was observed in the regemit function in regexp.c in Artifex Software, Inc. Rated criti
Heap-based buffer overflow in the js_stackoverflow function in jsrun.c in Artifex Software, Inc. Rated critical severity
An issue was discovered in Artifex MuJS 1.0.5. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploi
GitHub PoC
Exploit-DB