CVE-2018-1000120

A buffer overflow exists in curl 7.12.3 to and including curl 7.58.0 in the FTP URL handling that allows an attacker to cause a denial of service or worse.

Published: 2018-03-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-1000120 is rated High Risk (66.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.30%). High exploitation likelihood—assess exposure and prioritize 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-2018-1000120

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 2026-05-13 1.54% 1.30% -0.24%
2 2026-03-10 1.89% 1.54% -0.35%
3 2026-03-04 — 1.89% —

Full EPSS history (48 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1000120

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2018-1000120

GitHub Security Advisory for CVE-2018-1000120

GHSA-674j-7m97-j2p9 · Severity: critical · Ecosystem: nuget — curl FTP path confusion leads to NIL byte out of bounds write

OS Trackers for CVE-2018-1000120

vendor priority summary link
alpine critical CVE-2018-1000120: 1 source package rows (curl); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2018-1000120
debian not yet assigned CVE-2018-1000120 not yet assigned priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-1000120
gentoo normal CVE-2018-1000120: 1 GLSA(s) (201804-04), 1 atom(s) (net-misc/curl); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-1000120
redhat medium — https://access.redhat.com/security/cve/CVE-2018-1000120
suse medium CVE-2018-1000120 severity moderate: SUSE including 333 source package names (0.9.1:libcurl4-7.37.0-37.17.1, 1.0.0:libcurl4-7.37.0-37.17.1, …), 440 product×package rows across 82 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (82 product lines)): Fixed 234, Known Affected 157, Known Not Affected 49. https://www.suse.com/security/cve/CVE-2018-1000120/
ubuntu medium CVE-2018-1000120 medium priority: Ubuntu including 1 source packages (curl), 5 status rows across 5 suites (artful, bionic, trusty, upstream, xenial): released 5. https://ubuntu.com/security/CVE-2018-1000120

Affected software / configurations for CVE-2018-1000120

Vendor Product Version Raw CPE
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 17.10 cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
haxx curl >= 7.12.3, <= 7.58.0 cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
oracle communications_webrtc_session_controller < 7.2 cpe:2.3:a:oracle:communications_webrtc_session_controller:*:*:*:*:*:*:*:*
oracle enterprise_manager_ops_center 12.2.2 cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.2:*:*:*:*:*:*:*
oracle enterprise_manager_ops_center 12.3.3 cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.55 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.55:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.56 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
oracle peoplesoft_enterprise_peopletools 8.57 cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*

References for CVE-2018-1000120

URL Tags
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html Patch
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html Patch
http://www.securityfocus.com/bid/103414 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040531 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHBA-2019:0327 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3157 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3558 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1543
https://access.redhat.com/errata/RHSA-2020:0544
https://access.redhat.com/errata/RHSA-2020:0594
https://curl.haxx.se/docs/adv_2018-9cd6.html Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00012.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3598-1/ Third Party Advisory
https://usn.ubuntu.com/3598-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4136 Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
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