What is CVE-2017-9773?

CVE-2017-9773 is a medium-severity vulnerability in Horde Image, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2017-06-21.

How severe is CVE-2017-9773?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Improper input validation in Horde Image

CVE-2017-9773

Denial of Service was found in Horde_Image 2.x before 2.5.0 via a crafted URL to the "Null" image driver.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-06-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Horde Image — versions 2.0.0, 2.0.1, 2.0.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

lists.horde.org/archives/announce/2017/001234.html (Mailing List, Third Party Advisory)
www.debian.org/security/2018/dsa-4276 (vendor-advisory)

Frequently asked questions

What is CVE-2017-9773?: CVE-2017-9773 is a medium-severity vulnerability in Horde Image, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2017-06-21.
How severe is CVE-2017-9773?: Medium severity. CVSS v3 base score is 5.7 out of 10.