CVE-2018-18358
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.
02 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.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.2% of scored records. A rank, not a probability.
- NVD base score
- 5.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-12-11 15:00Z7 YR AGO
- Last updated
- 2024-08-05 11:08Z2 YR AGO
- Reserved
- 2018-10-15
- Assigning CNA
- Chrome
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- a2b88c3d41ad9b5fadec07d37f98aba61d5f5f6c06b204e7bb5c7c32aa207d49
05 Affected products
06 References
- crbug.comhttps://crbug.com/899126
- chromereleases.googleblog.comhttps://chromereleases.googleblog.com/2018/12/stable-channel-update-for-desktop.html
- access.redhat.comRHSA-2018:3803https://access.redhat.com/errata/RHSA-2018:3803
- www.debian.orgDSA-4352https://www.debian.org/security/2018/dsa-4352
- www.securityfocus.com106084http://www.securityfocus.com/bid/106084
- security.gentoo.orgGLSA-201908-18https://security.gentoo.org/glsa/201908-18
07 Fixed in
Arch Linux
- chromium Fixed in 71.0.3578.80-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- chromium Fixed in 71.0.3578.80-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- chromium Fixed in 71.0.3578.80-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- chromium Fixed in 71.0.3578.80-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- chromium-browser Fixed in 71.0.3578.80-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- chromium-browser Fixed in 71.0.3578.80-0ubuntu0.18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.