PatchTheCVECVE-2018-3978: An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Proce
CVE-2018-3978 is a high-severity flaw (CVSS 8.8) affecting atlantis word processor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor 3.0.2.3, 3.0.2.5. A specially crafted document can cause Atlantis to write a value outside the bounds of a heap allocation, resulting in a buffer overflow. An attacker must convince a victim to open a document in order to trigger this vulnerability.
Why this priority
- High severity
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 37%) |
| CISA exploited list | No |
| Weakness | CWE-787 |
| Published | 2018-10-01 |
| 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-2018-3978?
atlantis word processor: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2018-3978 being exploited?
CVE-2018-3978 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-2018-3978 affect?
CVE-2018-3978 affects atlantis word processor. Severity is high (CVSS 8.8). An exploitable out-of-bounds write vulnerability exists in the Word Document parser of the Atlantis Word Processor 3.0.2.3, 3.0.2.5. A specially crafted document can cause Atlantis to write a value outside the bounds of a heap allocation, r
How urgent is CVE-2018-3978?
Priority 52/100. High severity; Public exploit reference
Related CVEs
- CVE-2018-4040 HIGH 7.8 DOWNGRADE An exploitable uninitialized pointer vulnerability exists in the rich text format parser of Atlantis Word Proc
- CVE-2018-4039 HIGH 7.8 DOWNGRADE An exploitable out-of-bounds write vulnerability exists in the PNG implementation of Atlantis Word Processor,
- CVE-2018-4038 HIGH 7.8 DOWNGRADE An exploitable arbitrary write vulnerability exists in the open document format parser of the Atlantis Word Pr
- CVE-2018-4001 HIGH 7.8 DOWNGRADE An exploitable uninitialized pointer vulnerability exists in the Office Open XML parser of Atlantis Word Proce
- CVE-2018-4000 HIGH 7.8 DOWNGRADE An exploitable double-free vulnerability exists in the Office Open XML parser of Atlantis Word Processor, vers