CVE-2009-2425
CVE-2009-2425 is a medium-severity vulnerability in Tor with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 3% (83rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Tor
- Published:
- Last modified:
Description
Tor before 0.2.0.35 allows remote attackers to cause a denial of service (application crash) via a malformed router descriptor.
Frequently asked questions
- What is CVE-2009-2425?
- Tor before 0.2.0.35 allows remote attackers to cause a denial of service (application crash) via a malformed router descriptor.
- How severe is CVE-2009-2425?
- CVE-2009-2425 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2009-2425 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-2425?
- CVE-2009-2425 affects Tor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2009-2425?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2009-2425 published?
- CVE-2009-2425 was published on 2009-07-10 and last updated on 2026-06-16.
References
- http://archives.seul.org/or/announce/Jun-2009/msg00000.html
- http://secunia.com/advisories/35546
- http://www.osvdb.org/55340
- http://www.securityfocus.com/bid/35505
- http://www.vupen.com/english/advisories/2009/1716
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51376
Affected products (1)
- cpe:2.3:a:tor:tor:0.2.0.35:*:*:*:*:*:*:*
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