CVE-2025-20124
highpriority · attend · 45EPSS 0.185 · 97 %ileexploit · PoCDEEUNLRUUSEPSS · scored 2026-10-27
A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands as the root user on an affected device. This vulnerability is due to insecure deserialization of user-supplied Java byte streams by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object to an affected API. A successful exploit could allow the attacker to execute arbitrary commands on the device and elevate privileges. Note: To successfully exploit this vulnerability, the attacker must have valid read-only administrative credentials. In a single-node deployment, new devices will not be able to authenticate during the reload time.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco ISE Passive Identity Connectorcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Identity Services Engine Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- EDB-52396Cisco ISE 3.0 - Remote Code Execution (RCE)PoC · exploit_db
affected products (55)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2025-0044Kwetsbaarheden verholpen in Cisco Identity Services EngineNL2025-02-07csaf · ncsc_nlNL
Cisco heeft kwetsbaarheden verholpen in Cisco Identity Services Engine (ISE).
- WID-SEC-W-2025-0279Cisco Identity Services Engine (ISE): Mehrere SchwachstellenDeutsch2025-02-05csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in der Cisco Identity Services Engine (ISE) ausnutzen, um beliebigen Code mit Administratorrechten auszuführen, Sicherheitsmaßnahmen zu umgehen und Cross-Site-Scripting-Angriffe durchzuführen.
- cisco-sa-ise-multivuls-FTW9AOXFCisco Identity Services Engine Insecure Java Deserialization and Authorization Bypass Vulnerabilities2025-02-05csaf · cisco_csafUS
Multiple vulnerabilities in Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to execute arbitrary commands and elevate privileges on an affected device. Note: To exploit these vulnerabilities, an attacker must have valid ISE administrative credentials. These vulnerabilities can be exploited using any valid administrative account, including read-only administrative accounts. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/issue/WLB-2025080009cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multivuls-FTW9AOXFcnnvd
- https://www.exploit-db.com/exploits/52396cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multivuls-FTW9AOXFenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-multivuls-FTW9AOXFVendor Advisorynvd
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