SolarWinds Serv-U resource consumption

Summaryinfo

A vulnerability identified as problematic has been detected in SolarWinds Serv-U. This vulnerability affects unknown code. Performing a manipulation results in resource consumption. This vulnerability is cataloged as CVE-2026-28318. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in SolarWinds Serv-U (affected version not known). It has been classified as problematic. This affects some unknown functionality. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update

The advisory is shared at solarwinds.com. This vulnerability is uniquely identified as CVE-2026-28318 since 02/26/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but an exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/05/2026 with a due date of 06/19/2026:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• File Transfer Software

Vendor

• SolarWinds

Name

• Serv-U

License

• commercial

Website

• Vendor: https://www.solarwinds.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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