Kubernetes kubectl escape output

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
2.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Kubernetes. This issue affects some unknown processing of the component kubectl. Executing a manipulation can lead to escape output. This vulnerability is registered as CVE-2021-25743. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Kubernetes (Virtualization Software) (affected version unknown). This vulnerability affects an unknown functionality of the component kubectl. The manipulation with an unknown input leads to a escape output vulnerability. The CWE definition for the vulnerability is CWE-116. The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved. As an impact it is known to affect integrity.

The weakness was published 01/07/2022 as 10169. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-25743 since 01/21/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 278691 (SUSE SLES15 Security Update : kubernetes1.23 (SUSE-SU-2025:02423-2)), 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 (278691). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.9

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.0
NVD Vector: 🔍

CNA Base Score: 3.0
CNA Vector (Kubernetes): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Escape output
CWE: CWE-116 / CWE-74 / CWE-707
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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Nessus ID: 278691
Nessus Name: SUSE SLES15 Security Update : kubernetes1.23 (SUSE-SU-2025:02423-2)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2021 🔍
01/07/2022 +351 days 🔍
01/07/2022 +0 days 🔍
12/16/2025 +1439 days 🔍

Sourcesinfo

Product: github.com

Advisory: 10169
Status: Confirmed

CVE: CVE-2021-25743 (🔍)
GCVE (CVE): GCVE-0-2021-25743
GCVE (VulDB): GCVE-100-189820

Entryinfo

Created: 01/07/2022 08:31
Updated: 12/16/2025 01:58
Changes: 01/07/2022 08:31 (46), 01/09/2022 17:30 (1), 08/22/2025 21:35 (33), 12/16/2025 01:58 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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