Vulnerabilities

CVSS

9.0 Critical

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Risk score

100.0

Known exploited

CISA KEV

Published

2021-07-14

Status

Published

Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.

Weaknesses

Memory Escape Vulnerability in Solarwinds Serv-UCWE-787

Coverage 1

vulnerability

CISA: Hackers now exploit SolarWinds Serv-U flaw to crash servers

CISA has issued a warning about hackers actively exploiting a recently patched vulnerability in SolarWinds Serv-U, a file transfer software, to crash servers. This vulnerability, CVE-2026-28318, stems from uncontrolled r…

BleepingComputer · Jun 5, 2026 High

CVE-2026-28318CVE-2021-35211CVE-2024-28995UNdenial-of-servicepatchingfile transfer

All articles mentioning it

Advisories and references

• solarwinds.com/trust-center/security-advisories/cve-2021-35211
• microsoft.com/security/blog/2021/07/13/microsoft-discovers-threat-ac...
• cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...