Formidable up to 3.5.2 weak prng

CVSS Meta Temp Score
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Formidable up to 3.5.2. This affects an unknown function. The manipulation leads to weak prng. This vulnerability is uniquely identified as CVE-2025-46653. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Formidable up to 3.5.2 and classified as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a weak prng vulnerability. Using CWE to declare the problem leads to CWE-338. The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. Impacted is integrity. The summary by CVE is:

Formidable (aka node-formidable) 2.1.0 through 3.x before 3.5.3 relies on hexoid to prevent guessing of filenames for untrusted executable content; however, hexoid is documented as not "cryptographically secure." (Also, there is a scenario in which only the last two characters of a hexoid string need to be guessed, but this is not often relevant.) NOTE: this does not imply that, in a typical use case, attackers will be able to exploit any hexoid behavior to upload and execute their own content.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-46653 since 04/26/2025. The exploitation is known to be difficult. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

Upgrading to version 3.5.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 022c2c5577dfe14d2947f10909d81b03b6070bf5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.1
NVD Vector: 🔍

CNA Base Score: 3.1
CNA Vector (MITRE): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Weak prng
CWE: CWE-338 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Formidable 3.5.3
Patch: 022c2c5577dfe14d2947f10909d81b03b6070bf5

Timelineinfo

04/26/2025 🔍
04/27/2025 +1 days 🔍
04/27/2025 +0 days 🔍
05/17/2026 +385 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-46653 (🔍)
GCVE (CVE): GCVE-0-2025-46653
GCVE (VulDB): GCVE-100-306347

Entryinfo

Created: 04/27/2025 10:01
Updated: 05/17/2026 02:40
Changes: 04/27/2025 10:01 (65), 10/16/2025 22:53 (12), 05/17/2026 02:40 (6)
Complete: 🔍
Cache ID: 216::103

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