CVE-2018-0494

Exp

GNU Wget before 1.19.5 is prone to a cookie injection vulnerability in the resp_new function in http.c via a \r\n sequence in a continuation line.

Published: 2018-05-06 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-0494 is rated High Exploit Risk (77.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 65.86%, 99th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.71% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-0494

EDB-ID Source Kind Published Link
44601 exploit_db edb 2018-05-06 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-0494

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 2026-05-29 64.16% 65.86% +1.71%
2 2026-04-13 70.79% 64.16% -6.64%
3 2026-03-31 — 70.79% —

Full EPSS history (39 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-0494

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N 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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-0494

OS Trackers for CVE-2018-0494

vendor priority summary link
alpine medium CVE-2018-0494: 1 source package rows (wget); 20 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 10. https://security.alpinelinux.org/vuln/CVE-2018-0494
debian not yet assigned CVE-2018-0494 not yet assigned priority: Debian including 1 source packages (wget), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-0494
gentoo normal CVE-2018-0494: 1 GLSA(s) (201806-01), 1 atom(s) (net-misc/wget); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-0494
redhat medium — https://access.redhat.com/security/cve/CVE-2018-0494
suse medium — https://www.suse.com/security/cve/CVE-2018-0494/
ubuntu medium CVE-2018-0494 medium priority: Ubuntu including 1 source packages (wget), 5 status rows across 5 suites (artful, bionic, trusty, upstream, xenial): released 5. https://ubuntu.com/security/CVE-2018-0494

Affected software / configurations for CVE-2018-0494

Vendor Product Version Raw CPE
gnu wget < 1.19.5 cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
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:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

References for CVE-2018-0494

URL Tags
http://www.securityfocus.com/bid/104129 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040838 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:3052 Third Party Advisory
https://git.savannah.gnu.org/cgit/wget.git/commit/?id=1fc9c95ec144499e69dc8ec76dbe07799d7d82cd Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00006.html Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/bug-wget/2018-05/msg00020.html Patch Third Party Advisory
https://savannah.gnu.org/bugs/?53763 Broken Link
https://security.gentoo.org/glsa/201806-01 Third Party Advisory
https://sintonen.fi/advisories/gnu-wget-cookie-injection.txt Exploit Third Party Advisory
https://usn.ubuntu.com/3643-1/ Third Party Advisory
https://usn.ubuntu.com/3643-2/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4195 Third Party Advisory
https://www.exploit-db.com/exploits/44601/ Exploit Third Party Advisory VDB Entry
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