CVE-2011-4529
Multiple buffer overflows in Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allow remote attackers to execute arbitrary code via a long serialid field in an _licensekey command, as demonstrated by the (1) check_licensekey or (2)…
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.9%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
Multiple buffer overflows in Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allow remote attackers to execute arbitrary code via a long serialid field in an _licensekey command, as demonstrated by the (1) check_licensekey or (2) read_licensekey command.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 6.86% probability · 94th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 28 November 2011
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- siemens/automation license manager
- Source
- cret@cert.org
EPSS 6.9% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://aluigi.altervista.org/adv/almsrvx_1-adv.txtExploit
- http://support.automation.siemens.com/WW/llisapi.dll/57252401?func=ll&objId=57252401&objAction=csView&nodeid0=17323948&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW&load=contentVendor Advisory
- http://support.automation.siemens.com/WW/view/en/114358
- http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdfUS Government Resource
- http://aluigi.altervista.org/adv/almsrvx_1-adv.txtExploit
- http://support.automation.siemens.com/WW/llisapi.dll/57252401?func=ll&objId=57252401&objAction=csView&nodeid0=17323948&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW&load=contentVendor Advisory
- http://support.automation.siemens.com/WW/view/en/114358
- http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdfUS Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.