HIGH

CVE-2019-20797

CVSS v3

7.5

HIGH

EPSS Score

3.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2019-20797 Red Hat Product Security
prboom-plus: heap-based buffer overflow in server and client UDP code

Full record on NVD

Description

An issue was discovered in e6y prboom-plus 2.5.1.5. There is a buffer overflow in client and server code responsible for handling received UDP packets, as demonstrated by I_SendPacket or I_SendPacketTo in i_network.c.

Technical details

Published: 2020-05-18

Frequently asked questions

What is CVE-2019-20797?

Is CVE-2019-20797 actively exploited?

Active exploitation of CVE-2019-20797 has not been confirmed. Its EPSS score was 3.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-20797?

CVE-2019-20797 has a CVSS v3 base score of 7.5 (HIGH severity).

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