CVE-2007-6437

Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a...

5.0 MediumFix available

Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a denial of service (crash) via a message with a timestamp that does not contain a trailing space, which triggers a NULL pointer dereference.

Exploit likelihood

3.35%Down 0.4 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2007-6437
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2007-6437
Updated: 2026-11-02

EUVDEUVD-2007-6403 No score

Record: EUVD-2007-6403
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gv7r-26f5-9p85 No score

Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a...

Record: GHSA-gv7r-26f5-9p85
Weakness: CWE-20
Updated: 2026-11-02

OSV No score

Record: CVE-2007-6437
Updated: 2026-11-02

OSVDEBIAN-CVE-2007-6437 No score

Record: DEBIAN-CVE-2007-6437
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`syslog-ng` Debian:12	before 2.0.6-1	2.0.6-1
`syslog-ng` Debian:13	before 2.0.6-1	2.0.6-1
`syslog-ng` Debian:14	before 2.0.6-1	2.0.6-1
`syslog-ng` Debian:4.0	before 2.0.0-1etch1, plus listed versions 2.0.0-1	2.0.0-1etch1
`syslog-ng` Debian:5.0	before 2.0.5-3+lenny1	2.0.5-3+lenny1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	affected, aliases, facts, references, title	GitHub Advisories, OSV
Nov 2, 2026	first indexed	CVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-6437 is a medium vulnerability (CVSS 5.0) in Balabit Syslog-ng Open Source Edition, published December 19, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.35%, the 88th percentile. Fixed in syslog-ng 2.0.6-1.

References

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