HTTP TRACK & TRACE Methods Enabled

published 2021-10-27 5y ago modified 2026-06-17 4mo ago also EUVD-2021-21876

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

The HTTP TRACK & TRACE methods were enabled in Kiwi Syslog Server 9.7.1 and earlier. These methods are intended for diagnostic purposes only. If enabled, the web server will respond to requests that use these methods by returning exact HTTP request that was received in the response to the client. This may lead to the disclosure of sensitive information such as internal authentication headers appended by reverse proxies.

Patch / fix

fixed in 1

SolarWinds Kiwi Syslog Server 9.8

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Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

SolarWinds Kiwi Syslog Server

Classification

Weakness

CWE-16 Configuration

References

documentation.solarwinds.com /en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
release-notes, vendor-advisory
solarwinds.com /trust-center/security-advisories/CVE-2021-35233
release-notes, vendor-advisory

Sources

CVE List CVE-2021-35233
NVD CVE-2021-35233

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