How severe is CVE-2020-21572?

CVE-2020-21572 has a CVSS 3.x base score of 7.5, rated high 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 high.

Is CVE-2020-21572 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21572?

CVE-2020-21572 affects Gilcc Project Gilcc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-21572?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-21572 published?

CVE-2020-21572 was published on 2021-11-02 and last updated on 2026-06-17.

CVE-2020-21572

CVE-2020-21572 is a high-severity vulnerability in Gilcc Project Gilcc with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Gilcc Project Gilcc
Published: 2021-11-02
Last modified: 2026-06-17

Description

Buffer overflow vulnerability in function src_parser_trans_stage_1_2_3 trgil gilcc before commit 803969389ca9c06237075a7f8eeb1a19e6651759, allows attackers to cause a denial of service.

Frequently asked questions

What is CVE-2020-21572?: Buffer overflow vulnerability in function src_parser_trans_stage_1_2_3 trgil gilcc before commit 803969389ca9c06237075a7f8eeb1a19e6651759, allows attackers to cause a denial of service.
How severe is CVE-2020-21572?: CVE-2020-21572 has a CVSS 3.x base score of 7.5, rated high 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 high.
Is CVE-2020-21572 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21572?: CVE-2020-21572 affects Gilcc Project Gilcc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-21572?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-21572 published?: CVE-2020-21572 was published on 2021-11-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gilcc_project:gilcc:*:*:*:*:*:*:*:*

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