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.

Published: 2010-12-22 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-1676 is rated High Risk (74.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.37%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.90% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-1676

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-06-23 10.46% 12.37% +1.90%
2 2025-03-30 15.37% 10.46% -4.90%
3 2025-03-29 — 15.37% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-1676

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2010-1676

OS Trackers for CVE-2010-1676

vendor priority summary link
debian not yet assigned CVE-2010-1676 not yet assigned priority: Debian including 1 source packages (tor), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2010-1676
gentoo high CVE-2010-1676: 1 GLSA(s) (201101-02), 1 atom(s) (net-misc/tor); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-1676
ubuntu medium CVE-2010-1676 medium priority: Ubuntu including 1 source packages (tor), 8 status rows across 8 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, upstream): DNE 3, ignored 2, not-affected 2, released 1. https://ubuntu.com/security/CVE-2010-1676

Affected software / configurations for CVE-2010-1676

Vendor Product Version Raw CPE
tor tor <= 0.2.1.1.27 cpe:2.3:a:tor:tor:*:*:*:*:*:*:*:*
tor tor 0.0.2 cpe:2.3:a:tor:tor:0.0.2:*:*:*:*:*:*:*
tor tor 0.0.2_pre13 cpe:2.3:a:tor:tor:0.0.2_pre13:*:*:*:*:*:*:*
tor tor 0.0.2_pre14 cpe:2.3:a:tor:tor:0.0.2_pre14:*:*:*:*:*:*:*
tor tor 0.0.2_pre15 cpe:2.3:a:tor:tor:0.0.2_pre15:*:*:*:*:*:*:*
tor tor 0.0.2_pre16 cpe:2.3:a:tor:tor:0.0.2_pre16:*:*:*:*:*:*:*
tor tor 0.0.2_pre17 cpe:2.3:a:tor:tor:0.0.2_pre17:*:*:*:*:*:*:*
tor tor 0.0.2_pre18 cpe:2.3:a:tor:tor:0.0.2_pre18:*:*:*:*:*:*:*
tor tor 0.0.2_pre19 cpe:2.3:a:tor:tor:0.0.2_pre19:*:*:*:*:*:*:*
tor tor 0.0.2_pre20 cpe:2.3:a:tor:tor:0.0.2_pre20:*:*:*:*:*:*:*
tor tor 0.0.2_pre21 cpe:2.3:a:tor:tor:0.0.2_pre21:*:*:*:*:*:*:*
tor tor 0.0.2_pre22 cpe:2.3:a:tor:tor:0.0.2_pre22:*:*:*:*:*:*:*
tor tor 0.0.2_pre23 cpe:2.3:a:tor:tor:0.0.2_pre23:*:*:*:*:*:*:*
tor tor 0.0.2_pre24 cpe:2.3:a:tor:tor:0.0.2_pre24:*:*:*:*:*:*:*
tor tor 0.0.2_pre25 cpe:2.3:a:tor:tor:0.0.2_pre25:*:*:*:*:*:*:*
tor tor 0.0.2_pre26 cpe:2.3:a:tor:tor:0.0.2_pre26:*:*:*:*:*:*:*
tor tor 0.0.2_pre27 cpe:2.3:a:tor:tor:0.0.2_pre27:*:*:*:*:*:*:*
tor tor 0.0.3 cpe:2.3:a:tor:tor:0.0.3:*:*:*:*:*:*:*
tor tor 0.0.4 cpe:2.3:a:tor:tor:0.0.4:*:*:*:*:*:*:*
tor tor 0.0.5 cpe:2.3:a:tor:tor:0.0.5:*:*:*:*:*:*:*
tor tor 0.0.6 cpe:2.3:a:tor:tor:0.0.6:*:*:*:*:*:*:*
tor tor 0.0.6.1 cpe:2.3:a:tor:tor:0.0.6.1:*:*:*:*:*:*:*
tor tor 0.0.6.2 cpe:2.3:a:tor:tor:0.0.6.2:*:*:*:*:*:*:*
tor tor 0.0.7 cpe:2.3:a:tor:tor:0.0.7:*:*:*:*:*:*:*
tor tor 0.0.7.1 cpe:2.3:a:tor:tor:0.0.7.1:*:*:*:*:*:*:*
tor tor 0.0.7.2 cpe:2.3:a:tor:tor:0.0.7.2:*:*:*:*:*:*:*
tor tor 0.0.7.3 cpe:2.3:a:tor:tor:0.0.7.3:*:*:*:*:*:*:*
tor tor 0.0.8 cpe:2.3:a:tor:tor:0.0.8:*:*:*:*:*:*:*
tor tor 0.0.8.1 cpe:2.3:a:tor:tor:0.0.8.1:*:*:*:*:*:*:*
tor tor 0.0.9 cpe:2.3:a:tor:tor:0.0.9:*:*:*:*:*:*:*
tor tor 0.0.9.1 cpe:2.3:a:tor:tor:0.0.9.1:*:*:*:*:*:*:*
tor tor 0.0.9.2 cpe:2.3:a:tor:tor:0.0.9.2:*:*:*:*:*:*:*
tor tor 0.0.9.3 cpe:2.3:a:tor:tor:0.0.9.3:*:*:*:*:*:*:*
tor tor 0.0.9.4 cpe:2.3:a:tor:tor:0.0.9.4:*:*:*:*:*:*:*
tor tor 0.0.9.5 cpe:2.3:a:tor:tor:0.0.9.5:*:*:*:*:*:*:*
tor tor 0.0.9.6 cpe:2.3:a:tor:tor:0.0.9.6:*:*:*:*:*:*:*
tor tor 0.0.9.7 cpe:2.3:a:tor:tor:0.0.9.7:*:*:*:*:*:*:*
tor tor 0.0.9.8 cpe:2.3:a:tor:tor:0.0.9.8:*:*:*:*:*:*:*
tor tor 0.0.9.9 cpe:2.3:a:tor:tor:0.0.9.9:*:*:*:*:*:*:*
tor tor 0.0.9.10 cpe:2.3:a:tor:tor:0.0.9.10:*:*:*:*:*:*:*
tor tor 0.1.0.1 cpe:2.3:a:tor:tor:0.1.0.1:*:*:*:*:*:*:*
tor tor 0.1.0.2 cpe:2.3:a:tor:tor:0.1.0.2:*:*:*:*:*:*:*
tor tor 0.1.0.3 cpe:2.3:a:tor:tor:0.1.0.3:*:*:*:*:*:*:*
tor tor 0.1.0.4 cpe:2.3:a:tor:tor:0.1.0.4:*:*:*:*:*:*:*
tor tor 0.1.0.5 cpe:2.3:a:tor:tor:0.1.0.5:*:*:*:*:*:*:*
tor tor 0.1.0.6 cpe:2.3:a:tor:tor:0.1.0.6:*:*:*:*:*:*:*
tor tor 0.1.0.7 cpe:2.3:a:tor:tor:0.1.0.7:*:*:*:*:*:*:*
tor tor 0.1.0.8 cpe:2.3:a:tor:tor:0.1.0.8:*:*:*:*:*:*:*
tor tor 0.1.0.9 cpe:2.3:a:tor:tor:0.1.0.9:*:*:*:*:*:*:*
tor tor 0.1.0.10 cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:*
tor tor 0.1.0.11 cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:*
tor tor 0.1.0.12 cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:*
tor tor 0.1.0.13 cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:*
tor tor 0.1.0.14 cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:*
tor tor 0.1.0.15 cpe:2.3:a:tor:tor:0.1.0.15:*:*:*:*:*:*:*
tor tor 0.1.0.16 cpe:2.3:a:tor:tor:0.1.0.16:*:*:*:*:*:*:*
tor tor 0.1.0.17 cpe:2.3:a:tor:tor:0.1.0.17:*:*:*:*:*:*:*
tor tor 0.1.0.18 cpe:2.3:a:tor:tor:0.1.0.18:*:*:*:*:*:*:*
tor tor 0.1.0.19 cpe:2.3:a:tor:tor:0.1.0.19:*:*:*:*:*:*:*
tor tor 0.1.1 cpe:2.3:a:tor:tor:0.1.1:*:*:*:*:*:*:*
tor tor 0.1.1.1 cpe:2.3:a:tor:tor:0.1.1.1:*:*:*:*:*:*:*
tor tor 0.1.1.1_alpha cpe:2.3:a:tor:tor:0.1.1.1_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.2 cpe:2.3:a:tor:tor:0.1.1.2:*:*:*:*:*:*:*
tor tor 0.1.1.2_alpha cpe:2.3:a:tor:tor:0.1.1.2_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.3 cpe:2.3:a:tor:tor:0.1.1.3:*:*:*:*:*:*:*
tor tor 0.1.1.3_alpha cpe:2.3:a:tor:tor:0.1.1.3_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.4 cpe:2.3:a:tor:tor:0.1.1.4:*:*:*:*:*:*:*
tor tor 0.1.1.4_alpha cpe:2.3:a:tor:tor:0.1.1.4_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.5 cpe:2.3:a:tor:tor:0.1.1.5:*:*:*:*:*:*:*
tor tor 0.1.1.5_alpha cpe:2.3:a:tor:tor:0.1.1.5_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.6 cpe:2.3:a:tor:tor:0.1.1.6:*:*:*:*:*:*:*
tor tor 0.1.1.6_alpha cpe:2.3:a:tor:tor:0.1.1.6_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.7 cpe:2.3:a:tor:tor:0.1.1.7:*:*:*:*:*:*:*
tor tor 0.1.1.7_alpha cpe:2.3:a:tor:tor:0.1.1.7_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.8 cpe:2.3:a:tor:tor:0.1.1.8:*:*:*:*:*:*:*
tor tor 0.1.1.8_alpha cpe:2.3:a:tor:tor:0.1.1.8_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.9 cpe:2.3:a:tor:tor:0.1.1.9:*:*:*:*:*:*:*
tor tor 0.1.1.9_alpha cpe:2.3:a:tor:tor:0.1.1.9_alpha:*:*:*:*:*:*:*
tor tor 0.1.1.10 cpe:2.3:a:tor:tor:0.1.1.10:*:*:*:*:*:*:*
tor tor 0.1.1.10_alpha cpe:2.3:a:tor:tor:0.1.1.10_alpha:*:*:*:*:*:*:*

References for CVE-2010-1676

URL Tags
http://archives.seul.org/or/announce/Dec-2010/msg00000.html Patch
http://blog.torproject.org/blog/tor-02128-released-security-patches Patch
http://blog.torproject.org/blog/tor-02220-alpha-out-security-patches Patch
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052657.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052690.html
http://secunia.com/advisories/42536 Vendor Advisory
http://secunia.com/advisories/42667
http://secunia.com/advisories/42783
http://secunia.com/advisories/42916
http://security.gentoo.org/glsa/glsa-201101-02.xml
http://securitytracker.com/id?1024910
http://www.debian.org/security/2010/dsa-2136
http://www.securityfocus.com/bid/45500
http://www.vupen.com/english/advisories/2010/3290 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0114
https://gitweb.torproject.org/tor.git/blob/release-0.2.1:/ChangeLog
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