CVE-2018-25273 CrossFont 7.5 Denial of Service via License Key Field
Local attackers can crash CrossFont by submitting an oversized payload in the License Key field, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-25273?
CVE-2018-25273 is a medium-severity memory corruption vulnerability in Acutesystems CrossFont, published on 26 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
CrossFont 7.5 contains a buffer overflow vulnerability that allows local attackers to crash the application by submitting an oversized payload in the License Key field. Attackers can generate a malicious file containing 4000 bytes of data, paste it into the License Key input field, and trigger an application crash when processing the input.
Weakness: CWE-120
Which versions are affected by CVE-2018-25273?
How do I fix CVE-2018-25273?
No fix has been published for CVE-2018-25273 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-25273 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25273 exists.
Sources
Also known as GHSA-624p-p24w-cmj7.