CVE-2024-11182 — Mdaemon
CISA KEVAs of 2025-10-30, CVE-2024-11182 is a MEDIUM-severity vulnerability in Mdaemon, CVSS v3.1 6.1, EPSS 15.3% (94.6th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-19), with a US federal remediation deadline of 2025-06-09. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2024-11182, most recently “APT28/UAC-0001 Sustained Cyber Espionage Against Ukraine & EU (2024-2026 New TTPs)”.
Last updated: 2025-10-30
What is CVE-2024-11182?
An XSS issue was discovered in MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker to load arbitrary JavaScript code in the context of a webmail user's browser window.
The record classifies CVE-2024-11182 under weakness class CWE-79. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 667 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.1 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS v4.0 base score
- 5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS (FIRST)
- 15.3% probability of exploitation in the next 30 days, higher than 94.6% of all scored CVEs
- CISA KEV
- Listed since 2025-05-19, federal remediation deadline 2025-06-09
- Threadlinqs priority
- 9/10 — CISA KEV-listed, which Threadlinqs floors at 9
- Published
- 2024-11-15, last modified 2025-10-30
Is CVE-2024-11182 being exploited?
CISA added CVE-2024-11182 to the Known Exploited Vulnerabilities catalog on 2025-05-19, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2025-06-09 under BOD 22-01. It currently carries a trending score of 39 in the Threadlinqs vulnerability feed.
Affected products and versions
- Mdaemon: Mdaemon
How to fix CVE-2024-11182
Because CVE-2024-11182 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2025-06-09. No vendor patch reference has been recorded for CVE-2024-11182 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2024-11182
1 tracked threat in the Threadlinqs corpus references CVE-2024-11182, either in the campaign’s CVE list or as an indicator on the campaign record.
- APT28/UAC-0001 Sustained Cyber Espionage Against Ukraine & EU (2024-2026 New TTPs) — HIGH · 2026-02-12
Sources
Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.
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