CVE-2020-36881: Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Input Directory' component th

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HIGH 7.8DOWNGRADE

CVE-2020-36881 is a high-severity flaw (CVSS 7.8) affecting diskboss. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Input Directory' component that allows unauthenticated attackers to execute arbitrary code on the system. Attackers can exploit this by pasting a specially crafted directory path into the 'Add Input Directory' field.

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	Low
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-119
Published	2025-12-05
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: flexense

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

Am I affected?

Timeline

2025-12-05 18:15 UTCPublished CVE record published
2026-06-17 03:16 UTCUpdated Record last modified

flexense diskboss DOWNGRADE

Affected: 7.7.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.7.14

1. Check installed version

apt-cache policy diskboss || rpm -q diskboss || diskboss --version

2. No fixed release: DOWNGRADE to a release before 7.7.14 (Debian / Ubuntu)

apt-cache madison diskboss sudo apt install diskboss=<VERSION_BEFORE_7.7.14> sudo apt-mark hold diskboss

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

dnf --showduplicates list diskboss sudo dnf downgrade diskboss-<VERSION_BEFORE_7.7.14> sudo dnf versionlock add diskboss

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-2020-36881?

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

Is CVE-2020-36881 being exploited?

CVE-2020-36881 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-2020-36881 affect?

CVE-2020-36881 affects diskboss. Severity is high (CVSS 7.8). Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Input Directory' component that allows unauthenticated attackers to execute arbitrary code on the system. Attackers can exploit this by pasting a specially cra

How urgent is CVE-2020-36881?

Priority 40/100. High severity; Public exploit reference

Related CVEs

CVE-2020-36882 HIGH 7.5 DOWNGRADE Flexsense DiskBoss 7.7.14 allows unauthenticated attackers to upload arbitrary files via /Command/Search Files
CVE-2020-36880 HIGH 7.8 DOWNGRADE Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Reports and Data Directory' f

References

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