Page generated: 11 Nov 2026, 00:20 UTC
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CVE-2026-28318

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 u…

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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
CVSS 7.5 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.3/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.5: +1.12
  • Fresh EPSS: 43.65%: +0.22

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 10 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

Cyber Press
Press · 22 Jul 2026, 07:00 · Critical SolarWinds Serv-U Vulnerabilities Allow Remote Code Execution as Root - Cyber Press
Recorded Future
Press · 10 Jul 2026, 07:00 · June 2026 CVE Landscape - Recorded Future
SecurityWeek
Press · 08 Jun 2026, 07:00 · SolarWinds Serv-U Vulnerability Exploited in the Wild - SecurityWeek
Check Point Research
Press · 08 Jun 2026, 07:00 · 8th June – Threat Intelligence Report - Check Point Research
Help Net Security
Press · 08 Jun 2026, 07:00 · CISA: Patch actively exploited SolarWinds Serv-U DoS vulnerability (CVE-2026-28318) - Help Net Security
See all 10 source documents
CyberSecurityNews
Press · 06 Jun 2026, 07:00 · CISA Warns of SolarWinds Serv-U Vulnerability Exploited in Attacks - CyberSecurityNews
Security Affairs
Press · 06 Jun 2026, 07:00 · U.S. CISA adds SolarWinds Serv-U flaw to its Known Exploited Vulnerabilities catalog - Security Affairs
The Hacker News
Press · 06 Jun 2026, 07:00 · CISA Adds Actively Exploited SolarWinds Serv-U DoS Flaw to KEV Catalog - The Hacker News
SC Media
Press · 05 Jun 2026, 07:00 · Hackers actively exploit SolarWinds Serv-U flaw to crash servers, CISA warns - SC Media
BleepingComputer
Press · 05 Jun 2026, 07:00 · CISA: Hackers now exploit SolarWinds Serv-U flaw to crash servers - BleepingComputer

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.3 (2026-11-02 15:14). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
EaEa0001/servu-cve-2026-28318-poc10Python10 Jun 2026, 07:02
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.5; EPSS 43.7%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:04.650373+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
04 Jun 2026, 14:05
Added to the CISA KEV catalog
05 Jun 2026, 00:00
First press mention
05 Jun 2026, 07:00
Latest press mention
22 Jul 2026, 07:00
Score calculated
05 Nov 2026, 14:00
PoCs on GitHub
1 repositories