CVE-2026-28313

CRITICAL

SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability

Title source: cna
STIX 2.1

Description

SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to SMTP hijacking leading to arbitrary account takeover. The impact is lower in Windows deployments.

References (2)

Core 2

Scores

CVSS v3 9.1
EPSS 0.0034
EPSS Percentile 27.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-639
Status published
Products (2)
solarwinds/serv-u < 2026.3
SolarWinds/Serv-U 15.5.4 HF1 and below
Published Jul 21, 2026
Tracked Since Jul 21, 2026