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TI-2021-12918 Aliases CVE-2021-33516GHSA-mqgp-2h56-fx4q

An issue was discovered in GUPnP before 1.0.7 and 1.1.x and 1.2.x before 1.2.5.

Priority LOW 37Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.01084 65th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnome:gupnp:*:*:*:*:*:*:*:*before 1.0.7; 1.1.0 to before 1.2.5VulnerableGNOME
  • cpe:2.3:a:gnome:gupnp:*:*:*:*:*:*:*:* Versions before 1.0.7; 1.1.0 to before 1.2.5 Vulnerable ·GNOME

Remediation

Red Hat 4 advisories

  • RHSA-2021:2459 Released 2021-06-16 · Red Hat rating Important
    gupnp security update
    • Red Hat CodeReady Linux Builder EUS (v. 8.1) gupnp-devel-1.0.3-3.el8_1
    • Red Hat Enterprise Linux AppStream EUS (v. 8.1) gupnp-1.0.3-3.el8_1
  • RHSA-2021:2417 Released 2021-06-14 · Red Hat rating Important
    gupnp security update
    • Red Hat Enterprise Linux Client (v. 7) gupnp-1.0.2-6.el7_9
    • Red Hat Enterprise Linux Client Optional (v. 7) gupnp-devel-1.0.2-6.el7_9, gupnp-docs-1.0.2-6.el7_9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) gupnp-devel-1.0.2-6.el7_9, gupnp-docs-1.0.2-6.el7_9
    • Red Hat Enterprise Linux Server (v. 7) gupnp-1.0.2-6.el7_9, gupnp-1.0.2-6.el7_9.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) gupnp-devel-1.0.2-6.el7_9, gupnp-devel-1.0.2-6.el7_9.ppc, gupnp-docs-1.0.2-6.el7_9
    • Red Hat Enterprise Linux Workstation (v. 7) gupnp-1.0.2-6.el7_9
    • Red Hat Enterprise Linux Workstation Optional (v. 7) gupnp-devel-1.0.2-6.el7_9, gupnp-docs-1.0.2-6.el7_9
  • RHSA-2021:2422 Released 2021-06-14 · Red Hat rating Important
    gupnp security update
    • Red Hat CodeReady Linux Builder EUS (v. 8.2) gupnp-devel-1.0.3-3.el8_2
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) gupnp-1.0.3-3.el8_2
Show 1 more Red Hat advisories
  • RHSA-2021:2363 Released 2021-06-09 · Red Hat rating Important
    gupnp security update
    • Red Hat CodeReady Linux Builder (v. 8) gupnp-devel-1.0.6-2.el8_4
    • Red Hat Enterprise Linux AppStream (v. 8) gupnp-1.0.6-2.el8_4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:2363
Red Hat CodeReady Linux Builder EUS (v. 8.1)Fixed RHSA-2021:2459
Red Hat CodeReady Linux Builder EUS (v. 8.2)Fixed RHSA-2021:2422
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:2363
Red Hat Enterprise Linux AppStream EUS (v. 8.1)Fixed RHSA-2021:2459
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2021:2422
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:2417
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2021:2417

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33516
  2. 2026-10-03 Alias added: GHSA-mqgp-2h56-fx4q

References

Patch 1

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences