CVE-2025-8854: Stack-based buffer overflow in LoadOFF in bulletphysics bullet3 before 3.26 on all platforms allows remote att

Q: How do I fix CVE-2025-8854?

pybullet: upgrade to newer than 3.25. Exact commands for each OS are on this page.

Q: Is CVE-2025-8854 being exploited?

CVE-2025-8854 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-8854 affect?

CVE-2025-8854 affects pybullet. Severity is critical (CVSS 9.8). 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 invo

Q: How urgent is CVE-2025-8854?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-8854 is a critical-severity flaw (CVSS 9.8) affecting pybullet. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-120, CWE-787
Published	2025-08-11
Last modified	2026-06-17

Publisher (CNA): CyberArk Labs · Vendor: bulletphysics

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-11 05:15 UTCPublished CVE record published
2026-06-17 10:07 UTCUpdated Record last modified

bulletphysics pybullet UPGRADE

Affected: <= 3.25

Fixed in: newer than 3.25

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pybullet || rpm -q pybullet || pybullet --version

2. UPGRADE to newer than 3.25 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pybullet

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pybullet

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2025-8854?

pybullet: upgrade to newer than 3.25. Exact commands for each OS are on this page.

Is CVE-2025-8854 being exploited?

CVE-2025-8854 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-2025-8854 affect?

CVE-2025-8854 affects pybullet. Severity is critical (CVSS 9.8). 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 invo

How urgent is CVE-2025-8854?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs