| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 3.7 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as problematic, was found in ruby-jwt 3.0.0.beta1. This issue affects some unknown processing. Such manipulation leads to inadequate encryption. This vulnerability is uniquely identified as CVE-2025-45765. The attack can be launched remotely. No exploit exists. The existence of this vulnerability is still disputed at present.
Details
A vulnerability was found in ruby-jwt 3.0.0.beta1. It has been rated as problematic. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a inadequate encryption vulnerability. Using CWE to declare the problem leads to CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. Impacted is confidentiality. CVE summarizes:
ruby-jwt v3.0.0.beta1 was discovered to contain weak encryption. NOTE: the Supplier's perspective is "keysize is not something that is enforced by this library. Currently more recent versions of OpenSSL are enforcing some key sizes and those restrictions apply to the users of this gem also."
The advisory is available at github.com. This vulnerability is handled as CVE-2025-45765 since 04/22/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.
The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 253579 (Linux Distros Unpatched Vulnerability : CVE-2025-45765), 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 vulnerability database at Tenable (253579). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.7
VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| 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: 🔍
Exploiting
Class: Inadequate encryptionCWE: CWE-326 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 253579
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-45765
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/22/2025 CVE reserved08/08/2025 Advisory disclosed
08/08/2025 VulDB entry created
08/22/2025 VulDB entry last update
Sources
Advisory: 668Status: Confirmed
Disputed: 🔍
CVE: CVE-2025-45765 (🔒)
GCVE (CVE): GCVE-0-2025-45765
GCVE (VulDB): GCVE-100-319202
Entry
Created: 08/08/2025 07:45Updated: 08/22/2025 18:28
Changes: 08/08/2025 07:45 (54), 08/22/2025 18:28 (2)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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