CVE-2011-2192

4.3 MEDIUM 3% exploit odds Fix listed

What it is

The Curl_input_negotiate function in http_negotiate.c in libcurl 7.10.6 through 7.21.6, as used in curl and other products, always performs credential delegation during GSSAPI authentication, which allows remote servers to impersonate clients via GSSAPI requests.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2011-07-07 21:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:30 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.9% in the next 30 days (EPSS).
Severity: 4.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2011-07-07 21:55 UTC
Last modified: 2026-06-16 23:30 UTC
Exploit probability: 2.9% · EPSS, next 30 days
Weakness: CWE-255
Record status: Modified

Affected

Haxx Libcurl ≤ 7.21.6
Apple Mac Os X < 10.7.3
Fedoraproject Fedora 14
Fedoraproject Fedora 15
Debian Linux 5.0
Debian Linux 6.0
Debian Linux 7.0
Canonical Ubuntu Linux 8.04

Attack profile CVSS 2.0 · 4.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record