How severe is CVE-2020-12784?

CVE-2020-12784 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-2020-12784 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12784?

CVE-2020-12784 affects Cpanel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12784?

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

When was CVE-2020-12784 published?

CVE-2020-12784 was published on 2020-05-11 and last updated on 2026-06-17.

CVE-2020-12784

CVE-2020-12784 is a medium-severity vulnerability in Cpanel 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)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cpanel
Published: 2020-05-11
Last modified: 2026-06-17

Description

cPanel before 86.0.14 allows remote attackers to trigger a bandwidth suspension via mail log strings (SEC-505).

Frequently asked questions

What is CVE-2020-12784?: cPanel before 86.0.14 allows remote attackers to trigger a bandwidth suspension via mail log strings (SEC-505).
How severe is CVE-2020-12784?: CVE-2020-12784 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-2020-12784 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12784?: CVE-2020-12784 affects Cpanel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12784?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12784 published?: CVE-2020-12784 was published on 2020-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cpanel:cpanel:*:*:*:*:*:*:*:*

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