SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2025-27218

Sitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.

EXPLOITMEDIUM 5.3EPSS 65.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 65.0%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

Sitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
65.00% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 26 June 2025
CISA KEV
Not listed
Weakness
CWE-94
Source
cve@mitre.org
EPSS trend
0%35%70%2 November 2026: 65.00%2 November 20262 November 2026

EPSS 65.0% since 2 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52344source ↗Sitecore 10.4 - Remote Code Execution (RCE)multiple · Yesith Alvarezwebapps26 June 2025no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.