Ivanti Virtual Traffic Manager Authentication Bypass Vulnerability

Incorrect implementation of an authentication algorithm in Ivanti vTM other than versions 22.2R1 or 22.7R2 allows a remote unauthenticated attacker to bypass authentication of the admin panel.

CheckOps priority index

9.3/10 Patch within 24 h

Severity9.8

Probability10.0

Exploitation4/5

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

EPSS · today 100.00% higher than 99.99% of CVEs

CVSS 3.1 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 770 days 24 Sept 2024

CISA due date 15 Oct 2024 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)24 Sept 2024
Exploited in EUVD (ENISA)24 Sept 2024
Used by ransomwareno
EPSS above 10 %100.00%
No account, over the networkyes

What to do

Fix

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

CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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

vTMVirtual Traffic Manager

Affected versions

patch: 22.2R1
patch: 22.7R2

Weaknesses (CWE)

CWE-287 CWE-303

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

13 Aug 2024
Published
24 Sept 2024
Exploitation reported (ENISA)
24 Sept 2024
Added to the KEV catalog
15 Oct 2024
CISA remediation due date
25 Sept 2026
EPSS peak: 100.00%

References

Other exploited vulnerabilities from the same vendor

CVE-2026-118527Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
1.0 · Rising fast
CVE-2026-111357Ivanti Connect Secure Missing Authentication for Critical Function Vulnerability
4.0 · Rising fast
CVE-2026-104935Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
8.4 · Rising fast
CVE-2026-10520Ivanti Sentry OS Command Injection Vulnerability
9.4 · Actively exploited
CVE-2026-6973Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
5.7 · Actively exploited
CVE-2026-1603Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability
8.5 · Background exploitation