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CVE-2021-35237

MEDIUM
Published 2021-10-29T13:32:18.489198Z
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Expert Analysis

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CVSS Score

V3.1
5.0
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.436
Higher than 43.6% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
LOW
Availability
LOW

Description

A missing HTTP header (X-Frame-Options) in Kiwi Syslog Server has left customers vulnerable to click jacking. Clickjacking is an attack that occurs when an attacker uses a transparent iframe in a window to trick a user into clicking on an actionable item, such as a button or link, to another server in which they have an identical webpage. The attacker essentially hijacks the user activity intended for the original server and sends them to the other server. This is an attack on both the user and the server.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

SolarWinds

Kiwi Syslog Server

Affected Versions:

9.7.2 and previous versions

EU Vulnerability Database

Monitored by ENISA for EU cybersecurity

EU Coordination

Not EU Coordinated

Exploitation Status

No Known Exploitation

EUVD ID

View on ENISA

ENISA Analysis

Malicious code in bioql (PyPI)

Affected Products (ENISA)

solarwinds
kiwi syslog server

ENISA Scoring

CVSS Score (3.1)

5.0
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS Score

0.180
probability

ENISA References

https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35237

Data provided by ENISA EU Vulnerability Database. Last updated: October 3, 2025

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-7wwf-jwf3-5r2m

Advisory Details

A missing HTTP header (X-Frame-Options) in Kiwi Syslog Server has left customers vulnerable to click jacking. Clickjacking is an attack that occurs when an attacker uses a transparent iframe in a window to trick a user into clicking on an actionable item, such as a button or link, to another server in which they have an identical webpage. The attacker essentially hijacks the user activity intended for the original server and sends them to the other server. This is an attack on both the user and the server.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-35237
WEB https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
WEB https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35237

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: July 7, 2023

References

https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35237
Published: 2021-10-29T13:32:18.489198Z
Last Modified: 2024-09-16T22:50:51.483Z
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