Is CVE-2023-3373 in the CISA KEV catalog?

No. CVE-2023-3373 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3373?

CVE-2023-3373 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2023-3373?

CVE-2023-3373 has an EPSS score of 0.75% (50th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-3373?

Upgrade gs21 firmware to 01.50.000 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-3373

MEDIUM

5.9

CVSS v3

NVD

Description

Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.

CWE-342 CWE-330

How to fix

Remediation Available

gs21 firmwareNVD

Affected:< 01.50.000Fixed in:01.50.000CVE-2023-3373derived from NVD

gt21 firmwareNVD

Affected:< 01.50.000Fixed in:01.50.000CVE-2023-3373derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L

Exploit Intelligence

0.75%probability of exploitation in 30 days

50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Vendor Advisory1

mitsubishielectric.com

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.