CVE-2019-12107
The upnp_event_prepare function in upnpevents.c in MiniUPnP MiniUPnPd through 2.1 allows a remote attacker to leak information from the heap due to improper validation of an snprintf return value.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The upnp_event_prepare function in upnpevents.c in MiniUPnP MiniUPnPd through 2.1 allows a remote attacker to leak information from the heap due to improper validation of an snprintf return value.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.03% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-252
- Affected
- miniupnp.free/miniupnpd
- Source
- cve@mitre.org
EPSS 3.0% since 27 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
- https://github.com/miniupnp/miniupnp/commit/bec6ccec63cadc95655721bc0e1dd49dac759d94Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00045.html
- https://usn.ubuntu.com/4542-1/
- https://www.vdoo.com/blog/security-issues-discovered-in-miniupnpExploit, Patch, Third Party Advisory
- https://github.com/miniupnp/miniupnp/commit/bec6ccec63cadc95655721bc0e1dd49dac759d94Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00045.html
- https://usn.ubuntu.com/4542-1/
- https://www.vdoo.com/blog/security-issues-discovered-in-miniupnpExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.