No exploitation reportedFix available

CVE-2005-0490

No exploitation reported by the sources we read.

Published2005-05-02
WeaknessCWE-131

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Multiple stack-based buffer overflows in libcURL and cURL 7.12.1, and possibly other versions, allow remote malicious web servers to execute arbitrary code via base64 encoded replies that exceed the intended buffer lengths when decoded, which is not properly handled by (1) the Curl_input_ntlm function in http_ntlm.c during NTLM authentication or (2) the Curl_krb_kauth and krb4_auth functions in krb4.c during Kerberos authentication.

Timeline

dates in UTC

2005-05-0204:00CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2005-0490?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2005-0490?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Haxx curl

Branch	Affected	Fixed in	Source
7.12	= 7.12.1	no fix published	NVD

Haxx libcurl

Branch	Affected	Fixed in	Source
7.12	= 7.12.1	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

distro.conectiva.com.brPatch · Vendor Advisory
marc.infoPatch
www.idefense.comVendor Advisory
www.idefense.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.05.1read 2026-10-23
NVDweakness (CWE)CWE-131read 2026-10-23
FIRST EPSSEPSS score5.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2005-05-02
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-2005-0490?

Is CVE-2005-0490 actively exploited?

Active exploitation of CVE-2005-0490 has not been confirmed. Its EPSS score was 5.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2005-0490?

CVE-2005-0490 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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