How severe is CVE-2018-18778?

CVE-2018-18778 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-18778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18778?

CVE-2018-18778 affects Acme Mini-httpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-18778 published?

CVE-2018-18778 was published on 2018-10-29 and last updated on 2026-06-17.

CVE-2018-18778

CVE-2018-18778 is a medium-severity vulnerability in Acme Mini-httpd with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 74% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Acme Mini-httpd
Published: 2018-10-29
Last modified: 2026-06-17

Description

ACME mini_httpd before 1.30 lets remote users read arbitrary files.

Frequently asked questions

What is CVE-2018-18778?: ACME mini_httpd before 1.30 lets remote users read arbitrary files.
How severe is CVE-2018-18778?: CVE-2018-18778 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-18778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18778?: CVE-2018-18778 affects Acme Mini-httpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18778 published?: CVE-2018-18778 was published on 2018-10-29 and last updated on 2026-06-17.

References

http://www.acme.com/software/mini_httpd/

Affected products (1)

cpe:2.3:a:acme:mini-httpd:*:*:*:*:*:*:*:*

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →