CVE-2018-0296Known exploitationPublic exploitNetwork attack vector

Unauthenticated reboot or disclosure via unchecked HTTP URLs

Published Jun 7, 2018 · Updated Jan 12, 2026

URL validation failure in Cisco ASA Software's web interface allows remote attackers to reboot devices via crafted HTTP requests. The internal web server accepts traversal paths into +CSCOE+/files/file_list.json without authentication, exposing directory and session information on certain releases instead of rebooting. Exploitation requires a reachable affected web feature; management-interface access remains restricted by configured source-IP ranges.

CVSS severity8.6
High
EPSS probability99.90%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Contact us

Summary

What happened

URL validation failure in Cisco ASA Software's web interface allows remote attackers to reboot devices via crafted HTTP requests. The internal web server accepts traversal paths into +CSCOE+/files/file_list.json without authentication, exposing directory and session information on certain releases instead of rebooting. Exploitation requires a reachable affected web feature; management-interface access remains restricted by configured source-IP ranges.

The record

CVE
CVE-2018-0296
Published
Jun 7, 2018
Updated
Jan 12, 2026
Vendor
Cisco
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2018CVE publishedPublication date reported by the CVE source.
  2. Jan 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Cisco Adaptive Security Appliance unknown

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cisco · Cisco Adaptive Security Appliance (ASA) Softwareversion=Cisco Adaptive Security Appliance unknown

Published CVSS scores

8.6CiscoCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20262
Sep 23, 20261
Sep 24, 20262
Sep 25, 20261
Sep 26, 20262
Sep 27, 20261
Sep 28, 20261
Latest reporting daySep 28, 2026
Latest daily unique IPs1
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Contact us