CVE-2009-3490

GNU Wget before 1.12 does not properly handle a '\0' character in a domain name in the Common Name field of an X.509 certificate, which allows man-in-the-middle remote attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Published: 2009-09-30 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3490 is rated Moderate Risk (56.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.83%). 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-2009-3490

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 2026-03-27 1.36% 1.83% +0.47%
2 2025-07-15 1.60% 1.36% -0.24%
3 2025-03-30 — 1.60% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3490

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2009-3490

OS Trackers for CVE-2009-3490

vendor priority summary link
debian medium CVE-2009-3490 medium priority: Debian including 1 source packages (wget), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-3490
gentoo normal CVE-2009-3490: 1 GLSA(s) (200910-01), 1 atom(s) (net-misc/wget); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-3490
redhat medium — https://access.redhat.com/security/cve/CVE-2009-3490
suse medium CVE-2009-3490 severity moderate: SUSE including 1 source package names (wget), 20 product×package rows across 20 product lines (SUSE Linux Enterprise High Performance Computing 12 SP4, SUSE Linux Enterprise High Performance Computing 12 SP5, … (20 product lines)): Known Not Affected 20. https://www.suse.com/security/cve/CVE-2009-3490/
ubuntu medium CVE-2009-3490 medium priority: Ubuntu including 1 source packages (wget), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): released 5. https://ubuntu.com/security/CVE-2009-3490

Affected software / configurations for CVE-2009-3490

Vendor Product Version Raw CPE
gnu wget <= 1.11.4 cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*
gnu wget 1.5.3 cpe:2.3:a:gnu:wget:1.5.3:*:*:*:*:*:*:*
gnu wget 1.6 cpe:2.3:a:gnu:wget:1.6:*:*:*:*:*:*:*
gnu wget 1.7 cpe:2.3:a:gnu:wget:1.7:*:*:*:*:*:*:*
gnu wget 1.7.1 cpe:2.3:a:gnu:wget:1.7.1:*:*:*:*:*:*:*
gnu wget 1.8 cpe:2.3:a:gnu:wget:1.8:*:*:*:*:*:*:*
gnu wget 1.8.1 cpe:2.3:a:gnu:wget:1.8.1:*:*:*:*:*:*:*
gnu wget 1.9 cpe:2.3:a:gnu:wget:1.9:*:*:*:*:*:*:*
gnu wget 1.9.1 cpe:2.3:a:gnu:wget:1.9.1:*:*:*:*:*:*:*
gnu wget 1.10 cpe:2.3:a:gnu:wget:1.10:*:*:*:*:*:*:*
gnu wget 1.10.1 cpe:2.3:a:gnu:wget:1.10.1:*:*:*:*:*:*:*
gnu wget 1.10.2 cpe:2.3:a:gnu:wget:1.10.2:*:*:*:*:*:*:*
gnu wget 1.11 cpe:2.3:a:gnu:wget:1.11:*:*:*:*:*:*:*
gnu wget 1.11.1 cpe:2.3:a:gnu:wget:1.11.1:*:*:*:*:*:*:*
gnu wget 1.11.2 cpe:2.3:a:gnu:wget:1.11.2:*:*:*:*:*:*:*
gnu wget 1.11.3 cpe:2.3:a:gnu:wget:1.11.3:*:*:*:*:*:*:*

References for CVE-2009-3490

cvelogic Threat Intelligence