CVE-2019-20797
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.09% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- prboom-plus project/prboom-plus
- Source
- cve@mitre.org
EPSS 3.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77J22ZEQXS5SAYZGBDJ475AKFFJNKX5L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WS7GRZUIHCGLFET33MGC3PEKCH37W6/
- https://logicaltrust.net/blog/2019/10/prboom1.htmlExploit, Third Party Advisory
- https://sourceforge.net/p/prboom-plus/bugs/252/Third Party Advisory
- https://sourceforge.net/p/prboom-plus/bugs/253/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77J22ZEQXS5SAYZGBDJ475AKFFJNKX5L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WS7GRZUIHCGLFET33MGC3PEKCH37W6/
- https://logicaltrust.net/blog/2019/10/prboom1.htmlExploit, Third Party Advisory
- https://sourceforge.net/p/prboom-plus/bugs/252/Third Party Advisory
- https://sourceforge.net/p/prboom-plus/bugs/253/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.