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CVE-2009-3490

23
FAUCET Score

CVE-2009-3490 describes a critical vulnerability in GNU Wget versions prior to 1.12, where a null character in an X.509 certificate's Common Name field could be exploited. This flaw allows remote man-in-the-middle attackers to spoof SSL servers using specially crafted certificates from legitimate Certification Authorities. The vulnerability carries a CVSS score of 6.8, indicating a medium severity with potential for partial confidentiality, integrity, and availability impact, requiring medium attack complexity. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.11.4CPE matchmatch criteria
cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*
1.5.3CPE matchmatch criteria
cpe:2.3:a:gnu:wget:1.5.3:*:*:*:*:*:*:*
1.6CPE matchmatch criteria
cpe:2.3:a:gnu:wget:1.6:*:*:*:*:*:*:*
1.7CPE matchmatch criteria
cpe:2.3:a:gnu:wget:1.7:*:*:*:*:*:*:*
1.7.1CPE matchmatch criteria
cpe:2.3:a:gnu:wget:1.7.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.52%
Probability of exploitation in next 30 days
EPSS Percentile
88.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0352 is in the 83rd percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: wget-0:1.10.2-0.30E.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: wget-0:1.10.2-1.el4_8.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wget-0:1.11.4-2.el5_4.1
View patch

Vendor Advisories (1)

redhatCVE-2009-3490Moderate

wget: incorrect verification of SSL certificate with NUL in name

Aug 12, 2009

References

addictivecode.org / pipermail/wget-notify/2009-August/001808.html
hg.addictivecode.org / wget/mainline/rev/1eab157d3be7
kb.juniper.net / InfoCenter/index
marc.info
marc.info
permalink.gmane.org / gmane.comp.web.wget.general/8972
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/36540
Vendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11099
securityfocus.com / bid/36205
vupen.com / english/advisories/2009/2498
Vendor Advisory