[NEW] [high] SolarWinds Serv-U: Multiple vulnerabilities

CSIRTS triage

What

Multiple vulnerabilities can allow arbitrary code execution as root, gain administrative privileges, and disclose confidential information.

Who is affected

Deployments of SolarWinds Serv-U are affected.

Urgency

Remediation is urgent due to high severity and potential for exploitation.

Action

Apply the latest security patches provided by SolarWinds.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

CERT-Bund (BSI) Security Advisories (DE · national-cert · site)

Severity

high

Published

2026-07-22

Exploitation

Not in CISA KEV at last sync

Language

Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2467

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-283020.56% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Low exploitation riskCVE-2026-283040.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Low exploitation riskCVE-2026-283050.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Low exploitation riskCVE-2026-283060.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
• Low exploitation riskCVE-2026-283070.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
• Low exploitation riskCVE-2026-283080.55% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
• Low exploitation riskCVE-2026-283090.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
• Low exploitation riskCVE-2026-283100.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
• Low exploitation riskCVE-2026-283120.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• unknownNCSC-2026-0265 [1.00] [M/H] Vulnerabilities fixed in SolarWinds Serv-Uncsc-nl
• criticalCVE-2026-28321: SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitr…nvd
• criticalCVE-2026-28317: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd
• criticalCVE-2026-28316: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd
• mediumCVE-2026-28315: SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that…nvd
• criticalCVE-2026-28314: SolarWinds Serv-U is affected by an insecure direct object reference vulnerability that leads …nvd
• criticalCVE-2026-28313: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd
• criticalCVE-2026-28312: SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a gr…nvd
• criticalCVE-2026-28310: SolarWinds Serv-U is affected by a privilege escalation vulnerability that allows a domain adm…nvd
• criticalCVE-2026-28309: SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain ad…nvd
• criticalCVE-2026-28308: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd
• criticalCVE-2026-28307: SolarWinds Serv-U is affected by a privilege escalation vulnerability that allows a domain use…nvd

Recent advisories for SolarWinds Serv-U

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

• unknownNCSC-2026-0265 [1.00] [M/H] Vulnerabilities fixed in SolarWinds Serv-Uncsc-nl · 2026-07-27
• criticalCVE-2026-28321: SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitr…nvd · 2026-07-21
• criticalCVE-2026-28317: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd · 2026-07-21
• criticalCVE-2026-28316: SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that…nvd · 2026-07-21
• mediumCVE-2026-28315: SolarWinds Serv-U was found to be affected by a stored cross-site scripting vulnerability that…nvd · 2026-07-21
• criticalCVE-2026-28314: SolarWinds Serv-U is affected by an insecure direct object reference vulnerability that leads …nvd · 2026-07-21

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