CVE-2012-3505

Tinyproxy 1.8.3 and earlier allows remote attackers to cause a denial of service (CPU and memory consumption) via (1) a large number of headers or (2) a large number of forged headers that trigger hash collisions predictably. bucket.

Published: 2012-10-09 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3505 is rated Moderate Risk (54.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 5.17%). EPSS rose +2.65% over the last day, indicating growing attacker interest. Review affected assets and schedule 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-2012-3505

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 2026-05-06 2.52% 5.17% +2.65%
2 2026-03-16 3.36% 2.52% -0.84%
3 2026-03-04 — 3.36% —

Full EPSS history (47 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3505

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2012-3505

OS Trackers for CVE-2012-3505

vendor priority summary link
debian not yet assigned CVE-2012-3505 not yet assigned priority: Debian including 1 source packages (tinyproxy), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-3505
gentoo normal CVE-2012-3505: 1 GLSA(s) (201312-15), 1 atom(s) (net-proxy/tinyproxy); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-3505
ubuntu medium CVE-2012-3505 medium priority: Ubuntu including 1 source packages (tinyproxy), 13 status rows across 13 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily): ignored 9, not-affected 2, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2012-3505

Affected software / configurations for CVE-2012-3505

Vendor Product Version Raw CPE
banu tinyproxy <= 1.8.3 cpe:2.3:a:banu:tinyproxy:*:*:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:*:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre1:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre2:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre3:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre4:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre5:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:pre6:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc1:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc10:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc2:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc4:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc5:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc6:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc7:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc8:*:*:*:*:*:*
banu tinyproxy 1.5.0 cpe:2.3:a:banu:tinyproxy:1.5.0:rc9:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:*:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre1:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre2:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre3:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre4:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre5:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:pre6:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:rc1:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:rc2:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:rc3:*:*:*:*:*:*
banu tinyproxy 1.5.1 cpe:2.3:a:banu:tinyproxy:1.5.1:rc4:*:*:*:*:*:*
banu tinyproxy 1.5.2 cpe:2.3:a:banu:tinyproxy:1.5.2:*:*:*:*:*:*:*
banu tinyproxy 1.5.2 cpe:2.3:a:banu:tinyproxy:1.5.2:rc1:*:*:*:*:*:*
banu tinyproxy 1.5.2 cpe:2.3:a:banu:tinyproxy:1.5.2:rc2:*:*:*:*:*:*
banu tinyproxy 1.5.3 cpe:2.3:a:banu:tinyproxy:1.5.3:*:*:*:*:*:*:*
banu tinyproxy 1.5.3 cpe:2.3:a:banu:tinyproxy:1.5.3:rc1:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:*:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:a:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:pre1:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:pre2:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:pre3:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:pre4:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:rc1:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:rc2:*:*:*:*:*:*
banu tinyproxy 1.6.0 cpe:2.3:a:banu:tinyproxy:1.6.0:rc3:*:*:*:*:*:*
banu tinyproxy 1.6.1 cpe:2.3:a:banu:tinyproxy:1.6.1:*:*:*:*:*:*:*
banu tinyproxy 1.6.2 cpe:2.3:a:banu:tinyproxy:1.6.2:*:*:*:*:*:*:*
banu tinyproxy 1.6.3 cpe:2.3:a:banu:tinyproxy:1.6.3:*:*:*:*:*:*:*
banu tinyproxy 1.6.4 cpe:2.3:a:banu:tinyproxy:1.6.4:*:*:*:*:*:*:*
banu tinyproxy 1.6.5 cpe:2.3:a:banu:tinyproxy:1.6.5:*:*:*:*:*:*:*
banu tinyproxy 1.7.0 cpe:2.3:a:banu:tinyproxy:1.7.0:*:*:*:*:*:*:*
banu tinyproxy 1.7.1 cpe:2.3:a:banu:tinyproxy:1.7.1:*:*:*:*:*:*:*
banu tinyproxy 1.8.0 cpe:2.3:a:banu:tinyproxy:1.8.0:*:*:*:*:*:*:*
banu tinyproxy 1.8.1 cpe:2.3:a:banu:tinyproxy:1.8.1:*:*:*:*:*:*:*
banu tinyproxy 1.8.2 cpe:2.3:a:banu:tinyproxy:1.8.2:*:*:*:*:*:*:*

References for CVE-2012-3505

cvelogic Threat Intelligence