CVE-2019-12310: ExaGrid appliances with firmware version v4.8.1.1044.P50 have a /monitor/data/Upgrade/ directory traversal vul

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2019-12310 is a critical-severity flaw (CVSS 9.8) affecting backup appliance firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ExaGrid appliances with firmware version v4.8.1.1044.P50 have a /monitor/data/Upgrade/ directory traversal vulnerability, which allows remote attackers to view and retrieve verbose logging information. Files within this directory were observed to contain sensitive run-time information, including Base64 encoded 'support' credentials, leading to administrative access of the device.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Weakness	CWE-22
Published	2019-06-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: exagrid

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

Am I affected?

Timeline

2019-06-03 19:29 UTCPublished CVE record published
2026-06-17 02:14 UTCUpdated Record last modified

exagrid backup appliance firmware MITIGATE

Affected: 48.1.1044.p50

Fixed in: no fixed release known

Safe to downgrade to: a release before 48.1.1044.p50

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2019-12310?

backup appliance firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-12310 being exploited?

CVE-2019-12310 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-2019-12310 affect?

CVE-2019-12310 affects backup appliance firmware. Severity is critical (CVSS 9.8). ExaGrid appliances with firmware version v4.8.1.1044.P50 have a /monitor/data/Upgrade/ directory traversal vulnerability, which allows remote attackers to view and retrieve verbose logging information. Files within this directory were obser

How urgent is CVE-2019-12310?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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