CVE-2026-76434

MEDIUMCVSS 4.9/10EPSS 0.38%

Last modified

CVE-2026-76434 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. A vulnerability in the certificate import functionality of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read arbitrary files from the affected system. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input by the affected feature. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

A vulnerability in the certificate import functionality of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read arbitrary files from the affected system. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input by the affected feature. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to read arbitrary files from the affected device, which could contain sensitive information.

Metrics

EPSS Probability
0.38%

29.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
CiscoIdentity Services Engine>= 3.1.0, < 3.3.0—
CiscoIdentity Services Engine3.3.0Patch1
CiscoIdentity Services Engine3.4.0—
CiscoIdentity Services Engine3.5.0—
CiscoIdentity Services Engine Passive Identity Connector>= 3.1.0, < 3.3.0—
CiscoIdentity Services Engine Passive Identity Connector3.3.0Patch1
CiscoIdentity Services Engine Passive Identity Connector3.4.0—

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-76434?
A vulnerability in the certificate import functionality of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read arbitrary files from the affected system. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input by the affected feature. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to read arbitrary files from the affected device, which could contain sensitive information.
How severe is CVE-2026-76434?
CVE-2026-76434 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2026-76434?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

Are you affected by CVE-2026-76434?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST