CVE-2026-28318

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.437 · 99 %ileexploit · PoCDEEUNLRUUS
grimoire priorityP0 · Act now
Exploitable?
Yes · in the wild
CISA KEV · 2 exploits · PoC
Likely / severe?
43.7% (99th) EPSS
CVSS 7.5 · high
Is it mine?
7 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2026-06-05remediate by 2026-06-19

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

EPSS · scored 2026-10-24

SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability

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

01

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@solarwinds.comexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · NCSC-NL NL
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400US
04

exploits (2)

Public proof-of-concept and weaponised exploit code.

05

affected products (7)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0176Kwetsbaarheid verholpen in SolarWinds Serv-UNL2026-06-05csaf · ncsc_nlNL

    SolarWinds heeft een kwetsbaarheid verholpen in Serv-U.

  • WID-SEC-W-2026-1787SolarWinds Serv-U: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-06-04csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in SolarWinds Serv-U ausnutzen, um einen Denial of Service Angriff durchzuführen.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundncsc_nlnvdNVDCVE.orgMITRE
published 2026-06-04modified 2026-10-21
09

references (7)

External citations — patches, advisories, analysis.

scry

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