The Circuitry
THE CIRCUITRYYour one-stop source for all tech news
HOMETODAYNEWSFEEDEVENTS
BOOKMARKS
RSS
© 2026 The Circuitry
About UsSourcesContactCorrectionsPrivacy
  • Today
  • Feed
  • Events
  • Saved
Scroll for more
Verification
VERIFIEDConfidence: HIGH
Source identified
Claims cross-referenced
No discrepancies found
Fact-check summary

SolarWinds disclosed CVE-2026-28302 (CVSS 9.1 IDOR leading to RCE as root) in Serv-U 2026.3 release notes on July 21, 2026; NVD added the record the same day.

Sourcing
1source

via NVD

NVD · track record
16Stories
100%Verified
1630d
All sources →
Home/Tech/SolarWinds Serv-U Hit by Critical IDOR Flaw CVE-2026-28302
VERIFIEDBy Xavier Rivera· ·1 min read

SolarWinds Serv-U Hit by Critical IDOR Flaw CVE-2026-28302

SolarWinds Serv-U is affected by an IDOR vulnerability rated CVSS 9.1 that can lead to privilege escalation and remote code execution as root when group administrator access is available. The flaw, published July 21 2026, carries lower impact on Windows and is addressed in the Serv-U 2026-3 release.

Source:NVD
Post
SolarWinds Serv-U Hit by Critical IDOR Flaw CVE-2026-28302
TL;DRAI · 60 sec read

SolarWinds disclosed a critical IDOR flaw, CVE-2026-28302, in Serv-U file transfer software versions 15.5.4 HF1 and below. The vulnerability carries a CVSS 9.1 score and lets group administrators escalate privileges to execute code as root on Linux and Windows. SolarWinds released version 2026-3 to address it.

SolarWinds has disclosed a critical vulnerability in its Serv-U file transfer software that enables privilege escalation and remote code execution as root.

Serv-U carries a CVSS 9.1 rating. The insecure direct object reference flaw, tracked as CVE-2026-28302, was published to the NVD on July 21, 2026. SolarWinds rates it CVSS 3.1 with base score 9.1 and vector AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
The vulnerability allows privilege escalation and remote code execution as root on affected deployments.

The issue requires group administrator access to exploit.

Impact varies by operating system. The vulnerability allows privilege escalation and remote code execution as root on affected deployments. Its impact is lower in Windows deployments compared with Linux.
From The CircuitryThe Feed — live briefs across tech, all day.See what’s happening →

Affected versions are listed in the advisory. Serv-U versions 15.5.4 HF1 and below are affected on both Windows and Linux platforms. The disclosure lists the product default status as unaffected for versions beyond that range.
Its impact is lower in Windows deployments compared with Linux.

Remediation guidance is available now. SolarWinds published release notes for Serv-U 2026-3 that address the flaw. The company also posted a dedicated security advisory at its trust center.
The CVE record was received from SolarWinds on July 21, 2026 at 12:17:07 PM and added to the NVD dataset the same day. It maps to CWE-639, authorization bypass through user-controlled key.

EXPERT TAKE

Enterprise file-transfer teams running Serv-U on Linux should prioritize the 2026-3 upgrade, as the root-level remote code execution risk is materially higher than on Windows.

Why this mattersAI · ~100 words

Tap a lens to see what this story means for you.

Reader-supported
DonateBuy me a coffee →Follow@thecircuitry_ →Follow@thecircuitry.to →

Reader-supported · The Brief

Liked this? The Brief brings you the whole day in tech, verified, every morning. Two minutes, free forever.

HELP US IMPROVE
From The Circuitry

See what’s happening right now

The Feed runs all day — short, verified briefs the moment they break.

Open the Feed →
From The Circuitry

Follow @thecircuitry_

Every story we publish, as it happens. No noise between.

Follow on X ↗On Bluesky ↗

Reader-supported

The Circuitry is a passion project I've always wanted to build, and I love the work behind it.

Running it costs real money. APIs, hosting, time. To keep improving the site and growing this into something useful for everyone, those costs have to be covered.

Any contribution is appreciated. If not, no pressure. Thanks for reading.

Buy me a coffee
SolarWindsVulnerabilityCVE
More fromNVD
  • Zyxel WAX650S Firmware Hit by High-Severity Command Injection Flaw

    Tech · 4d
  • Microsoft Office Excel Use-After-Free Flaw Rated CVSS 8.8

    Tech · 4d
  • NVD Adds Shell Injection Flaw in Wazuh GitHub Actions Workflows as CVE-2026-67308

    Tech · 7d
More inTech
  • Tesla and SpaceX confirm Terafab chip fab in Texas

    Tech · 2d
  • OpenAI Urges Federal Judge to Throw Out Apple's Trade Secrets Complaint

    Tech · 2d
  • Meta introduces Muse Code, its terminal-based coding agent

    Tech · 2d
SupportThe Work

The Circuitry is reader-supported. If you find the daily brief useful, you can buy me a coffee to keep it going.

Buy a coffee →
SubscribeCircuitry Brief

Liked this? The Brief brings you the whole day in tech, verified, every morning. Free forever.

MORE IN TECH

Tesla and SpaceX confirm Terafab chip fab in Texas

Tesla and SpaceX have confirmed Grimes County, Texas as the site for their Terafab semiconductor megafactory, with the first phase costing roughly $16.8 billion. The project targets the largest chip manufacturing facility on the planet to supply over 1 terawatt of compute per year that exceeds current and future global production capacity.

OpenAI Urges Federal Judge to Throw Out Apple's Trade Secrets Complaint

OpenAI has filed a motion asking a federal judge to dismiss Apple's trade secrets lawsuit, describing the claims as meritless. The dispute, which follows a July suit and this week's injunction request from Apple, highlights tensions after their prior partnership on Siri and OpenAI's hardware push.

Meta introduces Muse Code, its terminal-based coding agent

Meta has released an early beta of Muse Code, a terminal-based coding agent driven by the updated Muse Spark 1.2 model and positioned against Anthropic's Claude Code and OpenAI's Codex. Substantially lower rates, including a contributor plan at $0.10 for every million tokens received, may encourage migration away from higher-priced options such as Anthropic's Sonnet 5.