How severe is CVE-2023-51079?

CVE-2023-51079 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-51079 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51079?

CVE-2023-51079 affects Mvel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51079?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-51079 published?

CVE-2023-51079 was published on 2023-12-27 and last updated on 2026-06-17.

CVE-2023-51079

CVE-2023-51079 is a medium-severity vulnerability in Mvel with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mvel
Published: 2023-12-27
Last modified: 2026-06-17

Description

A long execution time can occur in the ParseTools.subCompileExpression method in MVEL 2.5.0.Final because of many Java class lookups. NOTE: the vendor disputes this because "the only thing that you could expect is that the parser will take a crazy amount of time to complete its task."

Frequently asked questions

What is CVE-2023-51079?: A long execution time can occur in the ParseTools.subCompileExpression method in MVEL 2.5.0.Final because of many Java class lookups. NOTE: the vendor disputes this because "the only thing that you could expect is that the parser will take a crazy amount of time to complete its task."
How severe is CVE-2023-51079?: CVE-2023-51079 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-51079 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51079?: CVE-2023-51079 affects Mvel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51079?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-51079 published?: CVE-2023-51079 was published on 2023-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mvel:mvel:2.5.0:*:*:*:*:*:*:*