CVE-2025-62000: BullWall Ransomware Containment may not always detect an encrypted file

Routine

HIGH 7.1DOWNGRADE

CVE-2025-62000 is a high-severity flaw (CVSS 7.1) affecting ransomware containment. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BullWall Ransomware Containment may not always detect an encrypted file. This issue affects a specific file inspection method that evaluates file content based on header bytes. An authenticated attacker could encrypt files, preserving the first four bytes and preventing this particular method from triggering. The affected product implements additional integrity-based detection mechanisms capable of identifying file corruption or encryption for so

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.1 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-1023
Published	2025-12-18
Last modified	2026-06-17

Publisher (CNA): Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government · Vendor: bullwall

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

Am I affected?

Timeline

2025-12-18 21:15 UTCPublished CVE record published
2026-06-17 09:51 UTCUpdated Record last modified

bullwall ransomware containment DOWNGRADE

Affected: 4.6.0.0 · 4.6.0.6 · 4.6.0.7 · 4.6.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.6.0.0

1. Check installed version

apt-cache policy ransomware-containment || rpm -q ransomware-containment || ransomware-containment --version

2. No fixed release: DOWNGRADE to a release before 4.6.0.0 (Debian / Ubuntu)

apt-cache madison ransomware-containment sudo apt install ransomware-containment=<VERSION_BEFORE_4.6.0.0> sudo apt-mark hold ransomware-containment

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

dnf --showduplicates list ransomware-containment sudo dnf downgrade ransomware-containment-<VERSION_BEFORE_4.6.0.0> sudo dnf versionlock add ransomware-containment

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-2025-62000?

ransomware containment: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-62000 being exploited?

CVE-2025-62000 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-2025-62000 affect?

CVE-2025-62000 affects ransomware containment. Severity is high (CVSS 7.1). BullWall Ransomware Containment may not always detect an encrypted file. This issue affects a specific file inspection method that evaluates file content based on header bytes. An authenticated attacker could encrypt files, preserving the f

How urgent is CVE-2025-62000?

Priority 28/100. High severity

Related CVEs

CVE-2025-62002 MEDIUM 4.3 DOWNGRADE BullWall Ransomware Containment considers the number of files modified to trigger detection
CVE-2025-62001 HIGH 8.8 DOWNGRADE BullWall Ransomware Containment supports configurable file and directory exclusions such as '$RECYCLE.BIN' to

References

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