PatchTheCVECVE-2019-18844: The Device Model in ACRN before 2019w25.5-140000p relies on assert calls in devicemodel/hw/pci/core.c and devi
CVE-2019-18844 is a high-severity flaw (CVSS 7.5) affecting acrn. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Device Model in ACRN before 2019w25.5-140000p relies on assert calls in devicemodel/hw/pci/core.c and devicemodel/include/pci_core.h (instead of other mechanisms for propagating error information or diagnostic information), which might allow attackers to cause a denial of service (assertion failure) within pci core. This is fixed in 1.2. 6199e653418e is a mitigation for pre-1.1 versions, whereas 2b3dedfb9ba1 is a mitigation for 1.1.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.7% (top 22%) |
| CISA exploited list | No |
| Weakness | CWE-617 |
| Published | 2019-11-13 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-18844?
acrn: upgrade to 2019w25.5-140000p. Exact commands for each OS are on this page.
Is CVE-2019-18844 being exploited?
CVE-2019-18844 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-18844 affect?
CVE-2019-18844 affects acrn. Severity is high (CVSS 7.5). The Device Model in ACRN before 2019w25.5-140000p relies on assert calls in devicemodel/hw/pci/core.c and devicemodel/include/pci_core.h (instead of other mechanisms for propagating error information or diagnostic information), which might
How urgent is CVE-2019-18844?
Priority 56/100. High severity; Remotely exploitable, no login, no user action; On your watchlist
Related CVEs
- CVE-2021-36148 HIGH 7.8 UPGRADE An issue was discovered in ACRN before 2.5
- CVE-2021-36147 HIGH 7.5 UPGRADE An issue was discovered in ACRN before 2.5
- CVE-2021-36146 HIGH 7.5 UPGRADE ACRN before 2.5 has a devicemodel/hw/pci/xhci.c NULL Pointer Dereference for a trb pointer.
- CVE-2021-36145 HIGH 7.5 UPGRADE The Device Model in ACRN through 2.5 has a devicemodel/core/mem.c use-after-free for a freed rb_entry.
- CVE-2021-36144 HIGH 7.5 UPGRADE The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to device