CVE-2009-0939
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and...
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
Exploit likelihood
What each source reports
NVD Score used
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
CVE-2009-0939- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE ListNo score
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
CVE-2009-0939- Updated
- 2026-11-02
EUVDEUVD-2009-0936No score
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
EUVD-2009-0936- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4v97-9crm-p348No score
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and...
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
GHSA-4v97-9crm-p348- Updated
- 2026-11-02
OSVNo score
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
CVE-2009-0939- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-0939No score
Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstrated using 192.168.0.
- Record
DEBIAN-CVE-2009-0939- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-0939 is a high vulnerability (CVSS 10.0) in Tor, published March 18, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.05%, the 81st percentile. Fixed in tor 0.2.0.34-1.
References
secunia.com/advisories/34583
archives.seul.org/or/announce/Feb-2009/msg00000.html
securityfocus.com/bid/33713
security.gentoo.org/glsa/glsa-200904-11.xml
nvd.nist.gov/vuln/detail/CVE-2009-0939
github.com/advisories/GHSA-4v97-9crm-p348
security-tracker.debian.org/tracker/CVE-2009-0939