CVE-2020-19491

HIGHNVD 7.87.8—

7.8

There is an invalid memory access bug in cgif.c that leads to a Segmentation fault in sam2p 0.49.4. A crafted input will lead to a denial of service or possibly unspecified other impact.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 40.5%
KEV: Not listed

Published

July 21, 2021

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73
cve@mitrehttps://github.com/pts/sam2p/issues/67
af854a3a-2127-422b-91ae-364da2661108https://github.com/pts/sam2p/commit/1d62cf8964bfcafa6561c4c3bb66d4aa4c529a73
af854a3a-2127-422b-91ae-364da2661108https://github.com/pts/sam2p/issues/67

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
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2026-06-05 22:45 UTCEPSS rescore
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2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-19491?

CVE-2020-19491 is a high vulnerability published on July 21, 2021. There is an invalid memory access bug in cgif.c that leads to a Segmentation fault in sam2p 0.49.4. A crafted input will lead to a denial of service or possibly unspecified other impact.

When was CVE-2020-19491 disclosed?

CVE-2020-19491 was first published in the National Vulnerability Database on July 21, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-19491 actively exploited?

CVE-2020-19491 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-19491?

CVE-2020-19491 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2020-19491?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-19491, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2020-19491

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-19491?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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