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CVE-2021-22005

The vCenter Server contains an arbitrary file upload vulnerability in the Analytics service. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to execute code on vCenter Server by uploading a specially crafted file.

CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
9.0/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 100.00%: +0.50

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

Sources: 13 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

shattered.io
Press · 24 Sep 2026, 07:00 · VMware vCenter RCE CVE-2026-59310: CVSS 9.8 [2026] - shattered.io
Field Effect
Press · 29 Jul 2026, 07:00 · Broadcom Patches Critical Vulnerabilities Affecting Multiple VMware Products - Field Effect
SC Media
Press · 05 Dec 2025, 08:00 · China-linked threat actor WARP PANDA targets US entities with BRICKSTORM - SC Media
The Hacker News
Press · 05 Dec 2025, 08:00 · CISA Reports PRC Hackers Using BRICKSTORM for Long-Term Access in U.S. Systems - The Hacker News
The Hacker News
Press · 21 Sep 2024, 07:00 · Hacktivist Group Twelve Targets Russian Entities with Destructive Cyber Attacks - The Hacker News
See all 13 source documents
www.trendmicro.com
Press · 03 Dec 2021, 08:00 · Vulnerabilities Exploited for Monero Mining Malware Delivered via GitHub, Netlify - www.trendmicro.com
www.trendmicro.com
Press · 03 Dec 2021, 08:00 · Vulnerabilities Exploited for Monero Mining Malware Delivered via GitHub, Netlify - www.trendmicro.com
www.thestack.technology
Press · 28 Sep 2021, 07:00 · There's no VMware bug bounty program. As a POC for CVE-2021-22005... - www.thestack.technology
SOC Prime
Press · 27 Sep 2021, 07:00 · Detect Critical VMware vCenter Vulnerability (CVE-2021-22005) Exploitation Attempts - SOC Prime
Check Point Research
Press · 26 Sep 2021, 07:00 · 27th September – Threat Intelligence Report - Check Point Research
BleepingComputer
Press · 24 Sep 2021, 07:00 · Hackers exploiting critical VMware vCenter CVE-2021-22005 bug - BleepingComputer
ServeTheHome
Press · 22 Sep 2021, 07:00 · VMware Remote Code Execution Vulnerability is a 9.8 of 10 - ServeTheHome
Rapid7
Press · 21 Sep 2021, 07:00 · Critical vCenter Server File Upload Vulnerability (CVE-2021-22005) - Rapid7

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 9.0 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

4

Public exploit entries / repo candidates

See 4 repos with metrics
RepositoryStarsForksLanguageUpdated
24-2021/EXP-POC266Python11 Jan 2023, 06:20
TaroballzChen/CVE-2021-22005-metasploit226Python02 Oct 2021, 08:21
RedTeamExp/CVE-2021-22005_PoC11—27 Sep 2021, 03:18
DarkFunct/exp_hub011Python11 Sep 2023, 12:00
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 9.8; EPSS 100.0%
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 13:58:23.782764+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
21 Sep 2021, 07:00
Published
23 Sep 2021, 11:37
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
24 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
4 repositories