How severe is CVE-2011-2192?

CVE-2011-2192 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-2192 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2192?

CVE-2011-2192 primarily affects Haxx Libcurl. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2192?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2192 published?

CVE-2011-2192 was published on 2011-07-07 and last updated on 2026-06-16.

CVE-2011-2192

CVE-2011-2192 is a medium-severity vulnerability in Haxx Libcurl with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Haxx Libcurl
Published: 2011-07-07
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-2192?: 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.
How severe is CVE-2011-2192?: CVE-2011-2192 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-2192 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2192?: CVE-2011-2192 primarily affects Haxx Libcurl. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2192?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2192 published?: CVE-2011-2192 was published on 2011-07-07 and last updated on 2026-06-16.

References

Affected products (11)

cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:14:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:15:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*

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