CVE-2007-0368: Stack-based buffer overflow in mbse-bbs 0.70 and earlier allows local users to execute arbitrary code via a lo

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HIGH 10.0DOWNGRADE

CVE-2007-0368 is a high-severity flaw (CVSS 10.0) affecting mbse-bbs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in mbse-bbs 0.70 and earlier allows local users to execute arbitrary code via a long string in the MBSE_ROOT environment variable.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	5.0% (top 8%)
CISA exploited list	No
Published	2007-01-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: michiel broek

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-01-19 23:28 UTCPublished CVE record published
2026-06-16 22:35 UTCUpdated Record last modified

michiel broek mbse-bbs DOWNGRADE

Affected: 0.33.17 · 0.33.18 · 0.33.19 · 0.33.20 · 0.35.7 · 0.36 · 0.38 · 0.60

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.33.17

1. Check installed version

apt-cache policy mbse-bbs || rpm -q mbse-bbs || mbse-bbs --version

2. No fixed release: DOWNGRADE to a release before 0.33.17 (Debian / Ubuntu)

apt-cache madison mbse-bbs sudo apt install mbse-bbs=<VERSION_BEFORE_0.33.17> sudo apt-mark hold mbse-bbs

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mbse-bbs sudo dnf downgrade mbse-bbs-<VERSION_BEFORE_0.33.17> sudo dnf versionlock add mbse-bbs

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: GNU/Linux mbse-bbs 0.70.0 - Local Buffer Overflow

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-2007-0368?

mbse-bbs: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-0368 being exploited?

CVE-2007-0368 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-2007-0368 affect?

CVE-2007-0368 affects mbse-bbs. Severity is high (CVSS 10.0). Stack-based buffer overflow in mbse-bbs 0.70 and earlier allows local users to execute arbitrary code via a long string in the MBSE_ROOT environment variable.

How urgent is CVE-2007-0368?

Priority 63/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

References

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