CVE-2018-18358: debian debian_linux Improper Input Validation
Vulnerability summary
CVE-2018-18358 is a medium (CVSS 5.7) Improper Input Validation vulnerability in debian debian_linux. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 38.5% of scored vulnerabilities.
Not severe (CVSS 5.7, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 11-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Lack of special casing of localhost in WPAD files in Google Chrome prior to 71.0.3578.80 allowed an attacker on the local network segment to proxy resources on localhost via a crafted WPAD file.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.7MediumCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.7MediumCVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat3 products
Debian2 products
- chromium< 71.0.3578.80-1
- debian_linuxEOL9.0
Google1 product
- chrome≥ unspecified, < 71.0.3578.80 | < 71.0.3578.80
Ubuntu1 product
- chromium-browser< 71.0.3578.80-0ubuntu0.16.04.1 | < 71.0.3578.80-0ubuntu0.18.04.1
4 vendors · 7 products
References
9 links- crbug.com/899126X Refsource MISC
- chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.htmlX Refsource CONFIRM
