EUVD-2026-46296
GHSA-mh8r-8vh8-m2q8
Severity by source
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Requires a pre-existing domain admin account so PR:H; network-reachable and low-complexity IDOR that escalates across a privilege boundary to root, justifying S:C and full C/I/A:H.
Primary rating from Vendor (SolarWinds).
CVSS VectorVendor: SolarWinds
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to privilege escalation to a system administrator with the ability to execute commands as the root user. This issue requires a domain account with administrator access. The impact is lower in Windows deployments.
AnalysisAI
Privilege escalation in SolarWinds Serv-U allows an authenticated domain administrator account to abuse an insecure direct object reference (IDOR) and elevate to a system administrator, ultimately executing commands as the root user on the underlying host. The flaw affects Serv-U file transfer server deployments, with a reduced impact on Windows installations, and carries a CVSS 9.1 rating driven by a scope change from application admin to OS-level root. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to already possess a Serv-U domain account with administrator access (CVSS PR:H) - this is the explicit, hard precondition stated in the description, so it is not a pre-authentication or fully unauthenticated attack despite the 'Authentication Bypass' tag. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H, 9.1 Critical) reflects network reachability, low attack complexity, and a scope change to full system compromise, but crucially requires PR:H - a pre-existing domain account with administrator access. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who already controls a Serv-U domain administrator account (an insider, or an outsider who phished or cracked such an account) sends crafted requests that reference a privileged system-administrator object using its identifier, bypassing the authorization check (IDOR). On a Linux/Unix deployment this escalates them to system administrator and lets them execute arbitrary commands as root, giving full host takeover. … |
| Remediation | Upgrade to SolarWinds Serv-U 2026-3, which contains the fix per the vendor release notes (https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm); review the security advisory at https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28316 to confirm the exact patched build for your platform. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all SolarWinds Serv-U installations and document current versions to locate deployments running below 2026-3. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Remote denial-of-service in SolarWinds Serv-U allows unauthenticated attackers to crash the Serv-U service by sending sp
Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Mem
SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive fil
In SolarWinds Serv-U before 15.2.2 Hotfix 1, there is a directory containing user profile files (that include users' pas
A denial of service vulnerability in SolarWinds Serv-U before 15.1.6 HFv1 allows an authenticated user to crash the appl
Share/IncomingWizard.htm in SolarWinds Serv-U before 15.2.3 mishandles the user-supplied SenderEmail parameter, aka "Sha
Privilege-scoped remote code execution in SolarWinds Serv-U managed file transfer server stems from an insecure direct o
Privilege-to-root remote code execution in SolarWinds Serv-U managed file transfer server stems from an insecure direct
Remote code execution in SolarWinds Serv-U managed file transfer/FTP server allows an attacker to run arbitrary code rem
Privilege escalation to remote code execution as root in SolarWinds Serv-U stems from an insecure direct object referenc
Account takeover in SolarWinds Serv-U managed file transfer server lets an authenticated user access and hijack other us
Privilege escalation to root/code execution in SolarWinds Serv-U (managed/secure file transfer server) arises from a bro
Same technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today