| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.3 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in XStream up to 1.4.15. This vulnerability affects unknown code. The manipulation results in deserialization. This vulnerability is known as CVE-2021-21351. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.
Details
A vulnerability, which was classified as critical, was found in XStream up to 1.4.15. Affected is an unknown function. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was published 03/23/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-21351. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.
Upgrading to version 1.4.16 eliminates this vulnerability. The upgrade is hosted for download at x-stream.github.io.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.1
NVD Vector: 🔍
CNA Base Score: 5.4
CNA Vector (GitHub, Inc.): 🔍
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: DeserializationCWE: CWE-502 / CWE-20
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 |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: XStream 1.4.16
Timeline
12/22/2020 🔍03/23/2021 🔍
03/23/2021 🔍
05/23/2025 🔍
Sources
Advisory: github.comStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2021-21351 (🔍)
GCVE (CVE): GCVE-0-2021-21351
GCVE (VulDB): GCVE-100-171570
Entry
Created: 03/23/2021 09:04Updated: 05/23/2025 19:44
Changes: 03/23/2021 09:04 (38), 04/03/2021 20:55 (5), 04/03/2021 20:59 (19), 05/23/2025 19:44 (26)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
No comments yet. Languages: en.
Please log in to comment.