CVE-2025-11346Public exploitNetwork attack vector

Authenticated remote code execution via unsafe deserialization

Published Oct 6, 2025 · Updated Oct 6, 2025

Insecure deserialization in ILIAS 8.23, 9.13, and 10.1 allows remote authenticated users to execute arbitrary server commands. The getRelayedRequest() method Base64-decodes the f_settings request value and passes it directly to PHP unserialize(), allowing a Monolog gadget chain to invoke system. Access to ScoreReportingGUI endpoints that accept f_settings is required, and successful exploitation runs the payload with the web server process's privileges.

CVSS severity9.8
Critical
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in ILIAS 8.23, 9.13, and 10.1 allows remote authenticated users to execute arbitrary server commands. The getRelayedRequest() method Base64-decodes the f_settings request value and passes it directly to PHP unserialize(), allowing a Monolog gadget chain to invoke system. Access to ScoreReportingGUI endpoints that accept f_settings is required, and successful exploitation runs the payload with the web server process's privileges.

The record

CVE
CVE-2025-11346
Published
Oct 6, 2025
Updated
Oct 6, 2025
Vendor
ILIAS open source e-Learning e.V.
Product
ILIAS
Classifications
CWE-502, CWE-20, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 6, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0
  2. Affected versionversion=10.1
  3. Affected versionversion=8.0
  4. Affected versionversion=8.1
  5. Affected versionversion=8.10
  6. Affected versionversion=8.11
  7. Affected versionversion=8.12
  8. Affected versionversion=8.13
  9. Affected versionversion=8.14
  10. Affected versionversion=8.15
  11. Affected versionversion=8.16
  12. Affected versionversion=8.17
  13. Affected versionversion=8.18
  14. Affected versionversion=8.19
  15. Affected versionversion=8.2
  16. Affected versionversion=8.20
  17. Affected versionversion=8.21
  18. Affected versionversion=8.22
  19. Affected versionversion=8.23
  20. Affected versionversion=8.3
  21. Affected versionversion=8.4
  22. Affected versionversion=8.5
  23. Affected versionversion=8.6
  24. Affected versionversion=8.7
  25. Affected versionversion=8.8
  26. Affected versionversion=8.9
  27. Affected versionversion=9.0
  28. Affected versionversion=9.1
  29. Affected versionversion=9.10
  30. Affected versionversion=9.11
  31. Affected versionversion=9.12
  32. Affected versionversion=9.13
  33. Affected versionversion=9.2
  34. Affected versionversion=9.3
  35. Affected versionversion=9.4
  36. Affected versionversion=9.5
  37. Affected versionversion=9.6
  38. Affected versionversion=9.7
  39. Affected versionversion=9.8
  40. Affected versionversion=9.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ILIAS open source e-Learning e.V. · ILIASversion=10.0; version=10.1; version=8.0; version=8.1; version=8.10; version=8.11; version=8.12; version=8.13; version=8.14; version=8.15; version=8.16; version=8.17; version=8.18; version=8.19; version=8.2; version=8.20; version=8.21; version=8.22; version=8.23; version=8.3; version=8.4; version=8.5; version=8.6; version=8.7; version=8.8; version=8.9; version=9.0; version=9.1; version=9.10; version=9.11; version=9.12; version=9.13; version=9.2; version=9.3; version=9.4; version=9.5; version=9.6; version=9.7; version=9.8; version=9.9

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CWE-20Improper Input Validation
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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