CVE-2025-8854: bulletphysics bullet3 · Classic Buffer Overflow
Affects bulletphysics bullet3Source CVE Database V5
Not known to be exploited · CVSS 8.4 High.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| bulletphysics bullet3 | Affected
| Fixed in– |
AI-suggested
1. Immediate mitigation should include restricting or disabling the use of the VHACD test utility and PyBullet’s vhacd function for processing untrusted OFF files until patches are available. 2. Implement strict input validation and sandboxing for any application components that process OFF files to limit the impact of potential exploitation. 3. Monitor and audit usage of bullet3 and related utilities to detect anomalous file inputs or unexpected crashes indicative of exploitation attempts. 4. Employ application whitelisting and endpoint protection solutions capable of detecting buffer overflow exploitation techniques. 5. Engage with software vendors and open-source communities to track patch releases and apply updates promptly once available. 6. Educate users and developers about the risks of opening untrusted OFF files and enforce policies to avoid processing files from unverified sources. 7. Consider network segmentation to isolate systems running vulnerable bullet3 components, reducing lateral movement opportunities. 8. Use runtime application self-protection (RASP) or memory protection technologies (e.g., stack canaries, ASLR) to mitigate exploitation impact.
Description
Stack-based buffer overflow in LoadOFF in bulletphysics bullet3 before 3.26 on all platforms allows remote attackers to execute arbitrary code via a crafted OFF file with an overlong initial token processed by the VHACD test utility or invoked indirectly through PyBullet's vhacd function.