PatchTheCVECVE-2014-4150: The scheme48-send-definition function in cmuscheme48.el in Scheme 48 allows local users to write to arbitrary
CVE-2014-4150 is a medium-severity flaw (CVSS 5.5) affecting scheme48. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The scheme48-send-definition function in cmuscheme48.el in Scheme 48 allows local users to write to arbitrary files via a symlink attack on /tmp/s48lose.tmp.
Why this priority
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 60%) |
| CISA exploited list | No |
| Weakness | CWE-59 |
| Published | 2018-07-20 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2014-4150?
scheme48: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2014-4150 being exploited?
CVE-2014-4150 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2014-4150 affect?
CVE-2014-4150 affects scheme48. Severity is medium (CVSS 5.5). The scheme48-send-definition function in cmuscheme48.el in Scheme 48 allows local users to write to arbitrary files via a symlink attack on /tmp/s48lose.tmp.
How urgent is CVE-2014-4150?
Priority 34/100. On your watchlist