CVE-2020-15007

CRITICALNVD 9.89.8—

9.8

A buffer overflow in the M_LoadDefaults function in m_misc.c in id Tech 1 (aka Doom engine) allows arbitrary code execution via an unsafe usage of fscanf, because it does not limit the number of characters to be read in a format argument.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 79.9%
KEV: Not listed

Published

June 24, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/AXDOOMER/doom-vanille/commit/8a6d9a02fa991a91ff90ccdc73b5ceabaa6cb9ec
cve@mitrehttps://twitter.com/notrevenant/status/1268654123903340544
af854a3a-2127-422b-91ae-364da2661108https://github.com/AXDOOMER/doom-vanille/commit/8a6d9a02fa991a91ff90ccdc73b5ceabaa6cb9ec
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/notrevenant/status/1268654123903340544

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

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

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 02:01 UTCEG score recompute
2026-05-27 02:01 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2020-15007?

CVE-2020-15007 is a critical vulnerability published on June 24, 2020. A buffer overflow in the MLoadDefaults function in mmisc.c in id Tech 1 (aka Doom engine) allows arbitrary code execution via an unsafe usage of fscanf, because it does not limit the number of characters to be read in a format argument.

When was CVE-2020-15007 disclosed?

CVE-2020-15007 was first published in the National Vulnerability Database on June 24, 2020, 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-2020-15007 actively exploited?

CVE-2020-15007 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-15007?

CVE-2020-15007 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-15007?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-15007, 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.

Dependency Blast Radius

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CVE-2020-15007

📅 Published

🔄 Last Modified

🔗 References (4)