Critical severity · published Oct 6, 2025
CVE-2025-11346
ILIAS Base64 Decoding unserialize deserialization
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IL
ILIAS · Ilias
8.0; 8.1; 8.2; 8.3; 8.4; 8.5; +34 more · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11346
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-11346
Permissions Required
https://vuldb.com/?ctiid.327231
Third Party Advisory
https://vuldb.com/?id.327231
Third Party Advisory
https://vuldb.com/?submit.664892
Third Party Advisory
https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2113
srlabs.de
https://srlabs.de/blog/breaking-ilias-part-2-three-to-rce
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