CVE-2020-26155
Multiple files and folders in Utimaco SecurityServer 4.20.0.4 and 4.31.1.0. are installed with Read/Write permissions for authenticated users, which allows for binaries to be manipulated by non-administrator users.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Multiple files and folders in Utimaco SecurityServer 4.20.0.4 and 4.31.1.0. are installed with Read/Write permissions for authenticated users, which allows for binaries to be manipulated by non-administrator users. Additionally, entries are made to the PATH environment variable which, in conjunction with these weak permissions, could enable an attacker to perform a DLL hijacking attack.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.38% probability · 31th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-427, CWE-732
- Affected
- utimaco/block-safe firmware · utimaco/cryptoserver cp5 firmware · utimaco/cryptoserver cp5 vs-nfd firmware · utimaco/paymentserver firmware · utimaco/paymentserver hybrid firmware · utimaco/securityserver firmware
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://hsm.utimaco.com/products-hardware-security-modules/general-purpose-hsm/Exploit, Vendor Advisory
- https://secureyourit.co.uk/wp/2021/03/13/utimaco-cve-2020-26155/Third Party Advisory
- https://hsm.utimaco.com/products-hardware-security-modules/general-purpose-hsm/Exploit, Vendor Advisory
- https://secureyourit.co.uk/wp/2021/03/13/utimaco-cve-2020-26155/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.