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CVE-2016-4971

65
FAUCET Score

CVE-2016-4971 is a critical vulnerability in GNU Wget versions prior to 1.18, affecting products from vendors like Canonical, GNU, Oracle, and Palo Alto Networks. This flaw allows remote servers to achieve arbitrary file write by redirecting an HTTP request to a specially crafted FTP resource. With a CVSS score of 8.8 (High), it presents a low-complexity network attack that can lead to high impact on confidentiality, integrity, and availability. While not currently on CISA's KEV catalog or experiencing widespread community discussion, public exploit code exists on ExploitDB, indicating a potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.18CPE matchmatch criteria
cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
45.93%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-49815 · Apr 30, 2021
This CVE's current EPSS score of 0.4593 is in the 99th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: wget-0:1.14-13.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wget
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wget

Vendor Advisories (1)

redhatCVE-2016-4971Moderate

wget: Lack of filename checking allows arbitrary file upload via FTP redirect

Jun 9, 2016

References

git.savannah.gnu.org / cgit/wget.git/commit
PatchVendor Advisory
lists.gnu.org / archive/html/info-gnu/2016-06/msg00004.html
Mailing ListPatchVendor Advisory
lists.opensuse.org / opensuse-updates/2016-08/msg00043.html
Broken Link
packetstormsecurity.com / files/162395/GNU-wget-Arbitrary-File-Upload-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
rhn.redhat.com / errata/RHSA-2016-2587.html
Broken Link
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatchThird Party Advisory
security.gentoo.org / glsa/201610-11
Third Party Advisory
security.paloaltonetworks.com / CVE-2016-4971
Third Party Advisory
exploit-db.com / exploits/40064
ExploitThird Party AdvisoryVDB Entry
oracle.com / technetwork/topics/security/bulletinjul2016-3090568.html
Third Party Advisory
securityfocus.com / bid/91530
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036133
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3012-1
Third Party Advisory