CVE-2018-6198

lowpriority · track · 19EPSS 0.004 · 34 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.40% (34th) EPSS

CVSS 3.3 · low

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.

cvss

Technical severity, 0–10. One row per scoring source.

4.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–4.7

v2.03.3lowAV:L/AC:M/Au:N/C:N/I:P/A:Pprimary · NVD / NIST USexploitability 3.4 · impact 4.9

v3.04.7mediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 1 · impact 3.6

v3.04.3mediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-59USprimary

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
canonical ubuntu linux= 12.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 17.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
tats w3m≤ 0.5.3nvdUScpe:2.3:a:tats:w3m:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-01-25modified 2026-06-17

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+2368 more

references (24)

External citations — patches, advisories, analysis.

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