CVE-2018-1999020

Exp

Open Networking Foundation (ONF) ONOS version 1.13.2 and earlier version contains a Directory Traversal vulnerability in core/common/src/main/java/org/onosproject/common/app/ApplicationArchive.java line 35 that can result in arbitrary file deletion (overwrite). This attack appear to be exploitable via a specially crafted zip file should be uploaded.

Published: 2018-07-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-1999020 is rated High Exploit Risk (60.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.28%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-1999020

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-1999020

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.84% 1.28% +0.44%
2 2025-05-31 1.46% 0.84% -0.62%
3 2025-04-17 1.46%

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1999020

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
1.8 3.6 [email protected]
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
8.6 4.9 [email protected]

Weakness enumeration for CVE-2018-1999020

Affected software / configurations for CVE-2018-1999020

Vendor Product Version Raw CPE
opennetworking onos <= 1.13.2 cpe:2.3:a:opennetworking:onos:*:*:*:*:*:*:*:*

References for CVE-2018-1999020

URL Tags
http://gms.cl0udz.com/ONOS_app_overwrite.pdf Exploit Mailing List Third Party Advisory
https://gerrit.onosproject.org/#/c/19043/ Patch Vendor Advisory
cvelogic Threat Intelligence