CVE-2025-65834: Meltytech Shotcut · Classic Buffer Overflow
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 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 26 Oct 2026.
What to do
AI-suggested
- Immediately restrict the opening of untrusted or unsolicited MLT project files in Shotcut environments until a patch is available.
- Implement network-level controls such as email filtering and endpoint protection to detect and block malicious project files containing manipulated width and height parameters.
- Monitor for anomalous application behavior or crashes related to Shotcut usage that could indicate exploitation attempts.
- Engage with Meltytech or the open-source community to obtain and apply security patches as soon as they are released.
- Consider sandboxing Shotcut processes or running them with least privilege to limit potential damage from exploitation.
- Educate users on the risks of opening project files from unknown sources and enforce strict file handling policies.
- Use application whitelisting and integrity monitoring to detect unauthorized modifications to Shotcut binaries or project files.
- Maintain up-to-date backups of critical media projects to enable recovery in case of compromise.
- Collaborate with cybersecurity teams to integrate this vulnerability into threat hunting and incident response playbooks.
Description
Meltytech Shotcut 25.10.31 is vulnerable to Buffer Overflow. A memory access violation occurs when processing MLT project files with manipulated width and height parameters. By setting these values to extremely large numbers, the application attempts to allocate excessive memory during image processing, triggering a buffer overflow in the mlt_image_fill_white function.