Ivanti Cloud Services Appliance (CSA) Path Traversal Vulnerability

Path Traversal in the Ivanti CSA before 4.6 Patch 519 allows a remote unauthenticated attacker to access restricted functionality.

CheckOps priority index

9.1/10 Patch within 24 h

Severity9.4

Probability9.9

Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 98.6% higher than 99.9% of CVEs

CVSS 3.1 9.4 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 775 days 19 Sept 2024

CISA due date 10 Oct 2024 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)19 Sept 2024
Exploited in EUVD (ENISA)19 Sept 2024
Used by ransomwareno
EPSS above 10 %98.6%
No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: As Ivanti CSA has reached End-of-Life status, users are urged to remove CSA 4.6.x from service or upgrade to the 5.0.x line of supported solutions, as future vulnerabilities on the 4.6.x version of CSA are unlikely to receive security updates.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

CSA (Cloud Services Appliance)Cloud Services Appliance (CSA)

Affected versions

patch: 4.6 Patch 519
patch: 5.0

Weaknesses (CWE)

CWE-22

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

19 Sept 2024
Published
19 Sept 2024
Exploitation reported (ENISA)
19 Sept 2024
Added to the KEV catalog
10 Oct 2024
CISA remediation due date
25 Sept 2026
EPSS peak: 98.6%

References

Other exploited vulnerabilities from the same vendor

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CVE-2026-111357Ivanti Connect Secure Missing Authentication for Critical Function Vulnerability
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CVE-2026-104935Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
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CVE-2026-10520Ivanti Sentry OS Command Injection Vulnerability
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CVE-2026-6973Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
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CVE-2026-1603Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
8.5 · Background exploitation