CVE-2025-13663: Altera Quartus Prime Pro · Incorrect Execution-Assigned Permissions
Affects Altera Quartus Prime ProSource CVE Database V5
Not known to be exploited · CVSS 6.7 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Altera Quartus Prime Pro | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2025-13663, European organizations should implement the following specific measures: 1) Restrict local user permissions to prevent unauthorized users from modifying or pre-creating the Quartus installation directory; 2) Enforce strict access control policies on development workstations to limit who can run installers or modify installation directories; 3) Use application whitelisting and endpoint protection to monitor and block unauthorized installation attempts; 4) Conduct manual verification of directory permissions before running the Quartus Prime Pro installer to ensure no inappropriate permissions exist; 5) Isolate FPGA development environments from general user systems to reduce risk exposure; 6) Monitor installation logs and system events for suspicious activities related to Quartus installations; 7) Engage with Altera (Intel) for updates or patches addressing this vulnerability and apply them promptly once available; 8) Educate users about the risks of running installers from untrusted sources and the importance of following secure installation procedures. These targeted actions go beyond generic advice by focusing on the specific installation permission flaw and the operational context of Quartus Prime Pro.
Description
Under certain circumstances, the Quartus Prime Pro Installer for Windows does not check the permissions of the Quartus target installation directory if the target installation directory already exists.