PULSEUnderground Intel

LIVE34signals / 24h

FEED

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CVE Watch—

CVE-2021-35211

SolarWinds Serv-U Remote Code Execution Vulnerability

CVSS

—

No CVSS

EPSS

91.2%

p100

KEV

YES

Nov 3, 2021

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d

91.2%EPSS · 30 days91.2%

2026-09-162026-10-14

KEV catalog record

Product

SolarWinds / Serv-U

Vulnerability

SolarWinds Serv-U Remote Code Execution Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

Nov 17, 2021

Known ransomware use

Yes

Summary description

SolarWinds Serv-U contains an unspecified memory escape vulnerability which can allow for remote code execution.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-35211

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CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-283187.5 HIG

KEV—74SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability85d CVE-2024-28995—

KEV—80SolarWinds Serv-U Path Traversal Vulnerability —CVE-2021-35247—

KEV—77SolarWinds Serv-U Improper Input Validation Vulnerability—