What is CVE-2021-33516?

CVE-2021-33516 is a high-severity vulnerability in GNOME Gupnp. CVSS score: 8.1/10. Published 2021-05-24.

How severe is CVE-2021-33516?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in GNOME Gupnp

CVE-2021-33516

An issue was discovered in GUPnP before 1.0.7 and 1.1.x and 1.2.x before 1.2.5. It allows DNS rebinding. A remote web server can exploit this vulnerability to trick a victim's browser into triggering actions against local UPnP services implemented using this library. Depending on the affected service, this could be used for data exfiltration, data tempering, etc.

EPSS: 0.011 (61.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Gnome Gupnp
N/a — versions n/a

References

cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33516?: CVE-2021-33516 is a high-severity vulnerability in GNOME Gupnp. CVSS score: 8.1/10. Published 2021-05-24.
How severe is CVE-2021-33516?: High severity. CVSS v3 base score is 8.1 out of 10.