# OPENSUSE-SU-2026:21370-1: gstreamer-plugins-bad security update

OPENSUSE-SU-2026:21370-1, released July 18, 2026, fixes 9 CVEs in gstreamer-plugins-bad (version 1.26.7-160000.3.1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-21370-1
- Platform: Linux
- Released: Jul 18, 2026
- Priority: High (Closes CVE-2026-52720, high severity)
- CVEs: 9, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:21370-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [gstreamer-plugins-bad](https://patchblox.com/security/data/product/linux/gstreamer-plugins-bad.md) | opensuse-leap 16.0 | 1.26.7-160000.3.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-52720](https://patchblox.com/security/data/cve/CVE-2026-52720.md) | High | gst-plugins-bad1.0: A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client) | 8.8 | 0.0064 |  |
| [CVE-2026-59692](https://patchblox.com/security/data/cve/CVE-2026-59692.md) | High | gst-plugins-bad1.0: A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin | 7.5 | 0.0058 |  |
| [CVE-2026-52722](https://patchblox.com/security/data/cve/CVE-2026-52722.md) | High | gst-plugins-bad1.0: A signed integer overflow vulnerability was found in GStreamer's VMnc decoder | 8.8 | 0.0039 |  |
| [CVE-2026-12891](https://patchblox.com/security/data/cve/CVE-2026-12891.md) | Routine | gst-plugins-bad1.0: A flaw was found in the GStreamer gst-plugins-bad package | 4.3 | 0.0039 |  |
| [CVE-2026-14935](https://patchblox.com/security/data/cve/CVE-2026-14935.md) | Routine | gst-plugins-bad1.0: A logic vulnerability was found in GStreamer's webrtcbin component | 3.7 | 0.0023 |  |
| [CVE-2026-53702](https://patchblox.com/security/data/cve/CVE-2026-53702.md) | Routine | gstreamer-plugins-bad: incorrect loop bound during H.265 SEI message parsing could result in a stack buffer overflow | 6.5 | 0.0023 |  |
| [CVE-2026-53701](https://patchblox.com/security/data/cve/CVE-2026-53701.md) | Routine | gstreamer-plugins-bad: multi-slice-in-tile partitions without slice index bounds checks could trigger an out-of-bounds write | 6.5 | 0.0021 |  |
| [CVE-2026-12892](https://patchblox.com/security/data/cve/CVE-2026-12892.md) | Routine | gst-plugins-bad1.0: A flaw was found in GStreamer's gst-plugins-bad package | 4.4 | 0.0016 |  |
| [CVE-2026-52721](https://patchblox.com/security/data/cve/CVE-2026-52721.md) | Routine | gst-plugins-bad1.0: Multiple out-of-bounds read vulnerabilities were found in GStreamer's pcapparse element | 5.3 | 0.0011 |  |

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Data as of 2026-11-11T13:47:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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