How severe is CVE-2022-35254?

CVE-2022-35254 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-35254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-35254?

CVE-2022-35254 primarily affects Ivanti Connect Secure. In total, 76 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-35254?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-35254 published?

CVE-2022-35254 was published on 2022-12-05 and last updated on 2026-06-17.

CVE-2022-35254

CVE-2022-35254 is a high-severity vulnerability in Ivanti Connect Secure with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Ivanti Connect Secure
Published: 2022-12-05
Last modified: 2026-06-17

Description

An unauthenticated attacker can cause a denial-of-service to the following products: Ivanti Connect Secure (ICS) in versions prior to 9.1R14.3, 9.1R15.2, 9.1R16.2, and 22.2R4, Ivanti Policy Secure (IPS) in versions prior to 9.1R17 and 22.3R1, and Ivanti Neurons for Zero-Trust Access in versions prior to 22.3R1.

Frequently asked questions

What is CVE-2022-35254?: An unauthenticated attacker can cause a denial-of-service to the following products: Ivanti Connect Secure (ICS) in versions prior to 9.1R14.3, 9.1R15.2, 9.1R16.2, and 22.2R4, Ivanti Policy Secure (IPS) in versions prior to 9.1R17 and 22.3R1, and Ivanti Neurons for Zero-Trust Access in versions prior to 22.3R1.
How severe is CVE-2022-35254?: CVE-2022-35254 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-35254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-35254?: CVE-2022-35254 primarily affects Ivanti Connect Secure. In total, 76 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-35254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-35254 published?: CVE-2022-35254 was published on 2022-12-05 and last updated on 2026-06-17.

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA45520/?kA23Z000000GH5OSAW

Affected products (76)

cpe:2.3:a:ivanti:connect_secure:*:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r1.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r10.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r10.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r11.5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r12:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r12.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r12.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r13:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r13.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r14:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r15:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r16:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r16.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r2.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r3.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r5.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r6.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r7.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8.0:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:*
cpe:2.3:a:ivanti:connect_secure:9.1:r8.4:*:*:*:*:*:*

More vulnerabilities in Ivanti Connect Secure

CVE-2021-22893 — Critical (CVSS 10.0): Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the…
CVE-2019-11510 — Critical (CVSS 10.0): In Pulse Secure Pulse Connect Secure (PCS) 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4, an…
CVE-2016-4787 — Critical (CVSS 10.0): Pulse Connect Secure (PCS) 8.2 before 8.2r1, 8.1 before 8.1r2, 8.0 before 8.0r10, and 7.4 before 7.4r13.4 allow remote…
CVE-2025-22467 — Critical (CVSS 9.9): A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6 allows a remote authenticated attacker…
CVE-2024-21894 — Critical (CVSS 9.8): A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows…
CVE-2018-20813 — Critical (CVSS 9.8): An input validation issue has been found with login_meeting.cgi in Pulse Secure Pulse Connect Secure 8.3RX before 8.3R2.

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