critical Known exploitedREV. 01

CVE-2024-28986SolarWinds Web Help Desk — untrusted data deserialized

Web Help Desk deserializes data it has not verified, which lets an attacker run commands on the host. It was reported as needing no login; SolarWinds could only reproduce it with one, and ships the fix to everyone regardless.

YOUR NEXT MOVE

Install Web Help Desk 12.8.3 Hotfix 1, and keep the console off the public internet — the vendor cannot rule out an unauthenticated path.

Read the risk

THE VITAL STATS
CVSS score
9.8/ 10
CVSS v3.1
EPSS probability
85%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2024-08-13
Added to KEV
2024-08-15
Exploit published
Not recorded
Confidence
high
Kill chain
initial access
MITRE ATT&CK
T1190
Severity
critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Fixed inSolarWinds Web Help Desk 12.8.3 Hotfix 1

Behind the card

4 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2024-28986 · CRDS 0.1 · Issued 2026-09-24