CVE-2018-19276
CriticalExploitedPublic exploitOpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.
Published Mar 21, 2019 · Updated Aug 7, 2026
Key Facts
Patch immediately- CVE-2018-19276 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Openmrs.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2020. Public exploit code is available.
- EPSS estimates a 99% probability of exploitation in the next 30 days.
- Fixed versions are available, including Openmrs 1.12.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
99%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
OpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Oct 14, 2020 | n/a | Not reported |
| CIRCL KEV | May 28, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OpenmrsOpenmrs | See advisory | 1.12.1 |
Patched Releases
Openmrs
1.12.1
Timeline
Publicly disclosed
Mar 21, 2019
Added to Industry KEV feed
Oct 14, 2020
Added to CIRCL KEV
May 28, 2025
Last updated
Aug 7, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisoryhttp://packetstormsecurity.com/files/155691/OpenMRS-Java-Deserialization-Remote-Code-Execution.html
- advisoryhttps://know.bishopfox.com/advisories/news/2019/02/openmrs-insecure-object-deserialization
- advisoryhttps://talk.openmrs.org/t/critical-security-advisory-cve-2018-19276-2019-02-04/21607
- exploithttp://packetstormsecurity.com/files/151553/OpenMRS-Platform-Insecure-Object-Deserialization.html
- exploitVulnCheck exploitation report
FAQ
Common Questions.
OpenMRS before 2.24.0 is affected by an Insecure Object Deserialization vulnerability that allows an unauthenticated user to execute arbitrary commands on the targeted system via crafted XML data in a request body.
Affected: Openmrs. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Openmrs 1.12.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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