CVE-2012-6128

Multiple stack-based buffer overflows in http.c in OpenConnect before 4.08 allow remote VPN gateways to cause a denial of service (application crash) via a long (1) hostname, (2) path, or (3) cookie list in a response.

Published: 2013-02-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-6128 is rated Moderate Risk (50.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.65%). EPSS rose +1.68% 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-2012-6128

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 2026-06-15 0.97% 2.65% +1.68%
2 2025-03-30 1.71% 0.97% -0.74%
3 2025-03-29 — 1.71% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-6128

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-2012-6128

OS Trackers for CVE-2012-6128

vendor priority summary link
debian not yet assigned CVE-2012-6128 not yet assigned priority: Debian including 1 source packages (openconnect), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-6128
gentoo normal CVE-2012-6128: 1 GLSA(s) (201405-18), 1 atom(s) (net-misc/openconnect); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-6128
ubuntu medium CVE-2012-6128 medium priority: Ubuntu including 1 source packages (openconnect), 15 status rows across 15 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 7, ignored 5, DNE 2, released 1. https://ubuntu.com/security/CVE-2012-6128

Affected software / configurations for CVE-2012-6128

Vendor Product Version Raw CPE
infradead openconnect <= 4.07 cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:*
infradead openconnect 1.00 cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:*
infradead openconnect 1.10 cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:*
infradead openconnect 1.20 cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:*
infradead openconnect 1.30 cpe:2.3:a:infradead:openconnect:1.30:*:*:*:*:*:*:*
infradead openconnect 1.40 cpe:2.3:a:infradead:openconnect:1.40:*:*:*:*:*:*:*
infradead openconnect 2.00 cpe:2.3:a:infradead:openconnect:2.00:*:*:*:*:*:*:*
infradead openconnect 2.01 cpe:2.3:a:infradead:openconnect:2.01:*:*:*:*:*:*:*
infradead openconnect 2.10 cpe:2.3:a:infradead:openconnect:2.10:*:*:*:*:*:*:*
infradead openconnect 2.11 cpe:2.3:a:infradead:openconnect:2.11:*:*:*:*:*:*:*
infradead openconnect 2.12 cpe:2.3:a:infradead:openconnect:2.12:*:*:*:*:*:*:*
infradead openconnect 2.20 cpe:2.3:a:infradead:openconnect:2.20:*:*:*:*:*:*:*
infradead openconnect 2.21 cpe:2.3:a:infradead:openconnect:2.21:*:*:*:*:*:*:*
infradead openconnect 2.22 cpe:2.3:a:infradead:openconnect:2.22:*:*:*:*:*:*:*
infradead openconnect 2.23 cpe:2.3:a:infradead:openconnect:2.23:*:*:*:*:*:*:*
infradead openconnect 2.24 cpe:2.3:a:infradead:openconnect:2.24:*:*:*:*:*:*:*
infradead openconnect 2.25 cpe:2.3:a:infradead:openconnect:2.25:*:*:*:*:*:*:*
infradead openconnect 2.26 cpe:2.3:a:infradead:openconnect:2.26:*:*:*:*:*:*:*
infradead openconnect 3.00 cpe:2.3:a:infradead:openconnect:3.00:*:*:*:*:*:*:*
infradead openconnect 3.01 cpe:2.3:a:infradead:openconnect:3.01:*:*:*:*:*:*:*
infradead openconnect 3.02 cpe:2.3:a:infradead:openconnect:3.02:*:*:*:*:*:*:*
infradead openconnect 3.11 cpe:2.3:a:infradead:openconnect:3.11:*:*:*:*:*:*:*
infradead openconnect 3.12 cpe:2.3:a:infradead:openconnect:3.12:*:*:*:*:*:*:*
infradead openconnect 3.13 cpe:2.3:a:infradead:openconnect:3.13:*:*:*:*:*:*:*
infradead openconnect 3.14 cpe:2.3:a:infradead:openconnect:3.14:*:*:*:*:*:*:*
infradead openconnect 3.15 cpe:2.3:a:infradead:openconnect:3.15:*:*:*:*:*:*:*
infradead openconnect 3.16 cpe:2.3:a:infradead:openconnect:3.16:*:*:*:*:*:*:*
infradead openconnect 3.17 cpe:2.3:a:infradead:openconnect:3.17:*:*:*:*:*:*:*
infradead openconnect 3.18 cpe:2.3:a:infradead:openconnect:3.18:*:*:*:*:*:*:*
infradead openconnect 3.19 cpe:2.3:a:infradead:openconnect:3.19:*:*:*:*:*:*:*
infradead openconnect 3.20 cpe:2.3:a:infradead:openconnect:3.20:*:*:*:*:*:*:*
infradead openconnect 3.99 cpe:2.3:a:infradead:openconnect:3.99:*:*:*:*:*:*:*
infradead openconnect 4.00 cpe:2.3:a:infradead:openconnect:4.00:*:*:*:*:*:*:*
infradead openconnect 4.01 cpe:2.3:a:infradead:openconnect:4.01:*:*:*:*:*:*:*
infradead openconnect 4.02 cpe:2.3:a:infradead:openconnect:4.02:*:*:*:*:*:*:*
infradead openconnect 4.03 cpe:2.3:a:infradead:openconnect:4.03:*:*:*:*:*:*:*
infradead openconnect 4.04 cpe:2.3:a:infradead:openconnect:4.04:*:*:*:*:*:*:*
infradead openconnect 4.05 cpe:2.3:a:infradead:openconnect:4.05:*:*:*:*:*:*:*
infradead openconnect 4.06 cpe:2.3:a:infradead:openconnect:4.06:*:*:*:*:*:*:*

References for CVE-2012-6128

cvelogic Threat Intelligence