CVE-2010-1676

CVE-2010-1676 is a critical-severity vulnerability in Tor with a CVSS 2.0 base score of 10.0. 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-119.

Key facts

Description

Heap-based buffer overflow in Tor before 0.2.1.28 and 0.2.2.x before 0.2.2.20-alpha allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2010-1676?
Heap-based buffer overflow in Tor before 0.2.1.28 and 0.2.2.x before 0.2.2.20-alpha allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.
How severe is CVE-2010-1676?
CVE-2010-1676 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-1676 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1676?
CVE-2010-1676 primarily affects Tor. In total, 145 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1676?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2010-1676 published?
CVE-2010-1676 was published on 2010-12-22 and last updated on 2026-06-16.

References

Affected products (145)

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