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CVE-2018-1000517

45
FAUCET Score

CVE-2018-1000517 describes a critical heap buffer overflow vulnerability in the BusyBox wget utility, affecting versions prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e across various BusyBox and associated Linux distributions. This flaw, rated 9.8 Critical, is remotely exploitable over the network without requiring user interaction or privileges, potentially leading to full compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage. The vulnerability has been addressed in later BusyBox versions.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.29.0CPE matchmatch criteria
cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
32.92%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.3292 is in the 95th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Advisories (1)

redhatCVE-2018-1000517Moderate

busybox: wget: Heap-based buffer overflow in the retrieve_file_data() function

Apr 8, 2018

References

git.busybox.net / busybox/commit
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00037.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2021/02/msg00020.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3935-1
Third Party Advisory