How severe is CVE-2026-76446?

CVE-2026-76446 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-76446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-76446?

CVE-2026-76446 primarily affects Cisco Identity Services Engine. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-76446?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-76446 published?

CVE-2026-76446 was published on 2026-09-16 and last updated on 2026-09-28.

CVE-2026-76446

CVE-2026-76446 is a medium-severity vulnerability in Cisco Identity Services Engine with a CVSS 3.x base score of 4.9. 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-611.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Cisco Identity Services Engine
Published: 2026-09-16
Last modified: 2026-09-28

Description

A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on the affected system that the underlying process has permission to access.

Frequently asked questions

What is CVE-2026-76446?: A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on the affected system that the underlying process has permission to access.
How severe is CVE-2026-76446?: CVE-2026-76446 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-76446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-76446?: CVE-2026-76446 primarily affects Cisco Identity Services Engine. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-76446?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-76446 published?: CVE-2026-76446 was published on 2026-09-16 and last updated on 2026-09-28.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multiauth-bypass-sgD2HbL4

Affected products (42)

cpe:2.3:a:cisco:identity_services_engine:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch10:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch11:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch4:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch5:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch6:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch7:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch8:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.3.0:patch9:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch4:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch5:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch6:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.5.0:-:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:3.5.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch10:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch11:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch4:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch5:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch6:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch7:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch8:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.3.0:patch9:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch2:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch3:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch4:*:*:*:*:*:*

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