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Vulnerability details: VCID-pzuz-3b4a-a3hn
Vulnerability ID VCID-pzuz-3b4a-a3hn
Aliases CVE-2018-0500
Summary Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
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-2018-0500.json
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
epss 0.01364 https://api.first.org/data/v1/epss?cve=CVE-2018-0500
cvssv3.1 High https://curl.se/docs/CVE-2018-0500.html
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-0500
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2018-0500
archlinux High https://security.archlinux.org/AVG-729
archlinux High https://security.archlinux.org/AVG-730
archlinux High https://security.archlinux.org/AVG-731
archlinux High https://security.archlinux.org/AVG-732
archlinux High https://security.archlinux.org/AVG-733
archlinux High https://security.archlinux.org/AVG-734
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-0500.json
https://api.first.org/data/v1/epss?cve=CVE-2018-0500
https://curl.haxx.se/docs/adv_2018-70a2.html
https://curl.se/docs/CVE-2018-0500.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0500
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628
https://security.gentoo.org/glsa/201807-04
http://www.securitytracker.com/id/1041280
1597101 https://bugzilla.redhat.com/show_bug.cgi?id=1597101
903546 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903546
ASA-201807-10 https://security.archlinux.org/ASA-201807-10
ASA-201807-5 https://security.archlinux.org/ASA-201807-5
ASA-201807-6 https://security.archlinux.org/ASA-201807-6
ASA-201807-7 https://security.archlinux.org/ASA-201807-7
ASA-201807-8 https://security.archlinux.org/ASA-201807-8
ASA-201807-9 https://security.archlinux.org/ASA-201807-9
AVG-729 https://security.archlinux.org/AVG-729
AVG-730 https://security.archlinux.org/AVG-730
AVG-731 https://security.archlinux.org/AVG-731
AVG-732 https://security.archlinux.org/AVG-732
AVG-733 https://security.archlinux.org/AVG-733
AVG-734 https://security.archlinux.org/AVG-734
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: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-2018-0500 https://nvd.nist.gov/vuln/detail/CVE-2018-0500
USN-3710-1 https://usn.ubuntu.com/3710-1/
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-2018-0500.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: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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-2018-0500
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-2018-0500
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 0.79379
EPSS Score 0.01364
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:48.506267+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.12/main.json 37.0.0