CVE-2018-4039: An exploitable out-of-bounds write vulnerability exists in the PNG implementation of Atlantis Word Processor,

This month

HIGH 7.8DOWNGRADE

CVE-2018-4039 is a high-severity flaw (CVSS 7.8) 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 PNG implementation of Atlantis Word Processor, version 3.2.7.2. This can allow an attacker to corrupt memory, which can result in code execution under the context of the application. An attacker must convince a victim to open a specially crafted 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	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-787
Published	2018-12-01
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: atlantiswordprocessor

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-12-01 19:29 UTCPublished CVE record published
2026-06-17 01:58 UTCUpdated Record last modified

atlantiswordprocessor atlantis word processor DOWNGRADE

Affected: 3.2.7.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.7.2

1. Check installed version

apt-cache policy atlantis-word-processor || rpm -q atlantis-word-processor || atlantis-word-processor --version

2. No fixed release: DOWNGRADE to a release before 3.2.7.2 (Debian / Ubuntu)

apt-cache madison atlantis-word-processor sudo apt install atlantis-word-processor=<VERSION_BEFORE_3.2.7.2> sudo apt-mark hold atlantis-word-processor

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list atlantis-word-processor sudo dnf downgrade atlantis-word-processor-<VERSION_BEFORE_3.2.7.2> sudo dnf versionlock add atlantis-word-processor

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2018-4039?

atlantis word processor: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-4039 being exploited?

CVE-2018-4039 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-2018-4039 affect?

CVE-2018-4039 affects atlantis word processor. Severity is high (CVSS 7.8). An exploitable out-of-bounds write vulnerability exists in the PNG implementation of Atlantis Word Processor, version 3.2.7.2. This can allow an attacker to corrupt memory, which can result in code execution under the context of the applica

How urgent is CVE-2018-4039?

Priority 51/100. 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-2018-4038 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
CVE-2018-3999 HIGH 7.8 DOWNGRADE An exploitable stack-based buffer overflow vulnerability exists in the JPEG parser of Atlantis Word Processor,

References

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