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CVE-2018-0494· NVD / CVE Program· CNA debian

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

Noroxi assessment

Priority: Monitor (action score 31/100)

  • Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 16.4% (FIRST EPSS); higher than 96.9% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: wget (Alpine:v3.10) 1.19.5-r0; wget (Alpine:v3.4) 1.18-r3; wget (Alpine:v3.5) 1.18-r4.

Low priority for now. Upgrade to wget (Alpine:v3.10) 1.19.5-r0; wget (Alpine:v3.4) 1.18-r3; wget (Alpine:v3.5) 1.18-r4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 6.5 · v3.0—Proof of concept Fix available
Published
May 6, 2018
Updated
Jun 16, 2026
EPSS
16.4% · 96th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
5 / 30 · 16.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnuwget
canonicalubuntu linux
debiandebian linux
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux workstation

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux12.04
  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux17.10
  • canonical ubuntu linux18.04
  • debian debian linux7.0
  • debian debian linux8.0
  • debian debian linux9.0
  • gnu wgetbefore 1.19.5
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux server7.0
  • redhat enterprise linux workstation7.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (debian). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a WGet

    • WGetaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10wgetbefore 1.19.5-r01.19.5-r0
Alpine:v3.4wgetbefore 1.18-r31.18-r3
Alpine:v3.5wgetbefore 1.18-r41.18-r4
Debian:12wgetbefore 1.19.5-11.19.5-1
Debian:7wgetbefore 1.13.4-3+deb7u61.13.4-3+deb7u6
Debian:8wgetbefore 1.16-1+deb8u51.16-1+deb8u5
Debian:9wgetbefore 1.18-5+deb9u21.18-5+deb9u2
openSUSE:Tumbleweedwgetbefore 1.21.1-2.21.21.1-2.2
Red Hat:enterprise_linux:7::clientwgetbefore 0:1.14-18.el70:1.14-18.el7
Red Hat:enterprise_linux:7::clientwget-debuginfobefore 0:1.14-18.el70:1.14-18.el7
SUSE:Linux Enterprise Desktop 12 SP3wgetbefore 1.14-21.7.11.14-21.7.1
SUSE:Linux Enterprise Server 11 SP4wgetbefore 1.11.4-1.41.3.11.11.4-1.41.3.1
SUSE:Linux Enterprise Server 11-SECURITYwget-openssl1before 1.11.4-1.41.3.11.11.4-1.41.3.1

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-13089GNU Wget: stack overflow in HTTP protocol handling
    59Plan
  • CVE-2016-4971GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted FTP resource.
    49Plan
  • CVE-2014-4877Absolute path traversal vulnerability in GNU Wget before 1.16, when recursion is enabled, allows remote FTP servers to write to arbitrary fi
    49Plan
  • CVE-2017-13090GNU Wget: heap overflow in HTTP protocol handling
    46Plan
  • CVE-2019-5953Buffer overflow in GNU Wget 1.20.1 and earlier allows remote attackers to cause a denial-of-service (DoS) or may execute an arbitrary code v
    41Plan
  • CVE-2024-38428url.c in GNU Wget through 1.24.5 mishandles semicolons in the userinfo subcomponent of a URI, and thus there may be insecure behavior in whi
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:wget1.19.5-r0 · Alpine:v3.10Package registry (OSV)
debian:wget1.19.5-1 · Debian:12Package registry (OSV)
opensuse:wget1.21.1-2.2 · openSUSE:TumbleweedPackage registry (OSV)
red hat:wget0:1.14-18.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:wget-debuginfo0:1.14-18.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:wget1.11.4-1.41.3.1 · SUSE:Linux Enterprise Server 11 SP4Package registry (OSV)
suse:wget-openssl11.11.4-1.41.3.1 · SUSE:Linux Enterprise Server 11-SECURITYPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2018-05-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-1 d
  2. Published
  3. TodayOct 18, 2026+3086 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (10 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records