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CVE-2018-5782

48
FAUCET Score

CVE-2018-5782 is a critical remote code execution vulnerability affecting Mitel Connect ONSITE (R1711-PREM and earlier) and Mitel ST 14.2 (GA28 and earlier). An unauthenticated attacker can inject and execute arbitrary PHP code by sending specially crafted requests to the vsethost.php page. This vulnerability has a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not currently listed on CISA's KEV catalog, a public exploit (EDB-46174) exists, indicating potential for exploitation. Despite the critical severity and public exploit, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= r1711-premCPE matchmatch criteria
cpe:2.3:a:mitel:connect_onsite:*:*:*:*:*:*:*:*
<= ga28CPE matchmatch criteria
cpe:2.3:a:mitel:st14.2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
19.06%
Probability of exploitation in next 30 days
EPSS Percentile
97.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-46174 · Jan 16, 2019
This CVE's current EPSS score of 0.1906 is in the 93rd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / twosevenzero/shoretel-mitel-rce
ProductThird Party Advisory
exploit-db.com / exploits/46174
ExploitThird Party AdvisoryVDB Entry
mitel.com / support/security-advisories/mitel-product-security-advisory-18-0004
Vendor Advisory