No exploitation reportedFix available

CVE-2018-0001

No exploitation reported by the sources we read.

Published2018-01-10
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A remote, unauthenticated attacker may be able to execute code by exploiting a use-after-free defect found in older versions of PHP through injection of crafted data via specific PHP URLs within the context of the J-Web process. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D67; 12.3 versions prior to 12.3R12-S5; 12.3X48 versions prior to 12.3X48-D35; 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D44, 14.1X53-D50; 14.2 versions prior to 14.2R7-S7, 14.2R8; 15.1 versions prior to 15.1R3; 15.1X49 versions prior to 15.1X49-D30; 15.1X53 versions prior to 15.1X53-D70.

Timeline

dates in UTC

2018-01-1022:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0001?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0001?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Juniper junos

Branch	Affected	Fixed in	Source
12.1	= 12.1x46	no fix published	NVD
12.3	= 12.3x48	no fix published	NVD
15.1	= 15.1x49	no fix published	NVD
15.1	= 15.1x53	no fix published	NVD
14.1	= 14.1	no fix published	NVD
14.2	= 14.2	no fix published	NVD
15.1	= 15.1	no fix published	NVD
12.3	= 12.3	no fix published	NVD
14.1	= 14.1x53	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

kb.juniper.netMitigation · Patch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.09.8read 2026-10-23
NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-416read 2026-10-23
FIRST EPSSEPSS score6.3 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-01-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-0001?

Is CVE-2018-0001 actively exploited?

Active exploitation of CVE-2018-0001 has not been confirmed. Its EPSS score was 6.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-0001?

CVE-2018-0001 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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