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CVE-2012-6128

18
FAUCET Score

CVE-2012-6128 describes multiple stack-based buffer overflows in OpenConnect versions prior to 4.08. Specifically, a remote VPN gateway can trigger a denial of service (application crash) by sending an overly long hostname, path, or cookie list in a response. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and can be exploited remotely with low attack complexity, resulting in a denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.07CPE matchmatch criteria
cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:*
1.00CPE matchmatch criteria
cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:*
1.10CPE matchmatch criteria
cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:*
1.20CPE matchmatch criteria
cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:*
1.30CPE matchmatch criteria
cpe:2.3:a:infradead:openconnect:1.30:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.65%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0265 is in the 77th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

debianvendor investigatingvia nvd_reference
View patch

References

git.infradead.org / users/dwmw2/openconnect.git/commitdiff/26f752c3dbf69227679fc6bebb4ae071aecec491
Vendor Advisory
lists.opensuse.org / opensuse-updates/2013-06/msg00115.html
exchange.xforce.ibmcloud.com / vulnerabilities/82058
wiki.mageia.org / en/Support/Advisories/MGASA-2013-0060
debian.org / security/2013/dsa-2623
Vendor Advisory
infradead.org / openconnect/changelog.html
mandriva.com / security/advisories
openwall.com / lists/oss-security/2013/02/12/7
securityfocus.com / bid/57884
Vendor Advisory