Is CVE-2026-45173 in the CISA KEV catalog?

No. CVE-2026-45173 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-45173?

CVE-2026-45173 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-45173?

CVE-2026-45173 has an EPSS score of 0.16% (6th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-45173?

Upgrade idira identity browser extension to 26.8.1 or later.

CVE & CISA-KEV Catalog

CVE-2026-45173

MEDIUM

6.5

CVSS v3

NVD

Description

Idira Identity Browser Extension (Chrome, Firefox, and Edge builds) versions prior to 26.8.1 exhibit an origin validation flaw within its internal web-page verification routines. If an authenticated user navigates to a specially crafted webpage, this interaction could potentially allow a remote attacker to trigger unauthorized application interaction or execution parameters within the context of that authenticated browser session. CyberArk Security Bulletin: CA26-21

CWE-346

How to fix

Remediation Available

idira identity browser extensionNVD

Affected:>= 26.0.0, < 26.8.1Fixed in:26.8.1CVE-2026-45173derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.16%probability of exploitation in 30 days

6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

Product1

docs.cyberark.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-22.