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Vulnerability details: VCID-gxy3-42ff-6bf8
Vulnerability ID VCID-gxy3-42ff-6bf8
Aliases CVE-2018-1000300
Summary curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-122 Heap-based Buffer Overflow
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000300.json
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
epss 0.01088 https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
cvssv3.1 High https://curl.se/docs/CVE-2018-1000300.html
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-1000300
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2018-1000300
archlinux Critical https://security.archlinux.org/AVG-694
archlinux Critical https://security.archlinux.org/AVG-695
archlinux Critical https://security.archlinux.org/AVG-696
archlinux Critical https://security.archlinux.org/AVG-697
archlinux Critical https://security.archlinux.org/AVG-698
archlinux Critical https://security.archlinux.org/AVG-699
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000300.json
https://api.first.org/data/v1/epss?cve=CVE-2018-1000300
https://curl.haxx.se/docs/adv_2018-82c2.html
https://curl.se/docs/CVE-2018-1000300.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000300
https://security.gentoo.org/glsa/201806-05
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/104207
http://www.securitytracker.com/id/1040933
1575533 https://bugzilla.redhat.com/show_bug.cgi?id=1575533
ASA-201805-13 https://security.archlinux.org/ASA-201805-13
ASA-201805-14 https://security.archlinux.org/ASA-201805-14
ASA-201805-15 https://security.archlinux.org/ASA-201805-15
ASA-201805-16 https://security.archlinux.org/ASA-201805-16
ASA-201805-17 https://security.archlinux.org/ASA-201805-17
ASA-201805-18 https://security.archlinux.org/ASA-201805-18
AVG-694 https://security.archlinux.org/AVG-694
AVG-695 https://security.archlinux.org/AVG-695
AVG-696 https://security.archlinux.org/AVG-696
AVG-697 https://security.archlinux.org/AVG-697
AVG-698 https://security.archlinux.org/AVG-698
AVG-699 https://security.archlinux.org/AVG-699
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
CVE-2018-1000300 https://nvd.nist.gov/vuln/detail/CVE-2018-1000300
USN-3648-1 https://usn.ubuntu.com/3648-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000300.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1000300
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1000300
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.76982
EPSS Score 0.01088
Published At Aug. 15, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:32:28.429738+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.6/main.json 37.0.0