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CVE-2021-44529

A code injection vulnerability in the Ivanti EPM Cloud Services Appliance (CSA) allows an unauthenticated user to execute arbitrary code with limited permissions (nobody).

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: 99.11%: +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: 5 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

GreyNoise
Press · 02 Feb 2026, 08:00 · The Noise in the Silence: Unmasking CISA's Hidden KEV Ransomware Updates - GreyNoise
Bitsight
Press · 28 May 2024, 07:00 · Ivanti EPM Cloud Services Appliance - Taking advantage of a backdoor to detect a vulnerability - Bitsight
CrowdStrike
Press · 29 Feb 2024, 08:00 · The Anatomy of an ALPHA SPIDER Ransomware Attack - CrowdStrike
Sonatype
Press · 27 Feb 2024, 08:00 · The Curious Case of 'csrf-magic': A Case Study in Supply Chain Poisoning - Sonatype
GreyNoise
Press · 21 Feb 2024, 08:00 · Practical Vulnerability Archaeology Starring Ivanti's CVE-2021-44529 - GreyNoise

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

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
jkana/CVE-2021-4452951Python24 Mar 2022, 04:07
Public exploit evidence
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 99.1%
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 13:58:32.072469+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Published
08 Dec 2021, 00:00
First press mention
21 Feb 2024, 08:00
Added to the CISA KEV catalog
25 Mar 2024, 00:00
Latest press mention
02 Feb 2026, 08:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
1 repositories