Skip to content
Noroxi
NVD / CVE Program· CNA redhat

CVE-2026-73433: Gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux fujifilm strd parsing leading to out-of-bounds read/write

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.14% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: GStreamer gst-plugins-good 1.28.6.

Low priority for now. Upgrade to GStreamer gst-plugins-good 1.28.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

MediumCVSS 6.6 · v3.1—No exploit Fix available
Published
Aug 12, 2026
Updated
Sep 23, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
6.6
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-73433

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for gstreamer records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gstreamergstreamer
redhatenterprise linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gstreamer gstreamerup to 1.28.6 inclusive
  • redhat enterprise linux10.0
  • redhat enterprise linux7.0
  • redhat enterprise linux8.0
  • redhat enterprise linux9.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • GStreamer gst-plugins-good

    • before 1.28.6affected · semver

  • Red Hat Red Hat Enterprise Linux 10

    • 0:1.26.7-2.el10_2.5 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

    • 0:1.24.11-1.el10_0.4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

    • 0:1.10.4-4.el7_9.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8

    • 0:1.16.1-7.el8_10.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

    • 0:1.16.1-4.el8_4.2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

    • 0:1.16.1-4.el8_4.2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

    • 0:1.16.1-4.el8_6.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

    • 0:1.16.1-4.el8_6.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service

    • 0:1.16.1-5.el8_8.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

    • 0:1.16.1-5.el8_8.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:1.22.12-7.el9_8.4 and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10gstreamer1-plugins-goodbefore 1.26.7-2.el10_2.51.26.7-2.el10_2.5
AlmaLinux:10gstreamer1-plugins-good-gtkbefore 1.26.7-2.el10_2.51.26.7-2.el10_2.5
AlmaLinux:8gstreamer1-plugins-goodbefore 1.16.1-7.el8_10.31.16.1-7.el8_10.3
AlmaLinux:8gstreamer1-plugins-good-gtkbefore 1.16.1-7.el8_10.31.16.1-7.el8_10.3
AlmaLinux:9gstreamer1-plugins-goodbefore 1.22.12-7.el9_8.41.22.12-7.el9_8.4
AlmaLinux:9gstreamer1-plugins-good-gtkbefore 1.22.12-7.el9_8.41.22.12-7.el9_8.4
Debian:12gst-plugins-good1.0before 1.22.0-5+deb12u41.22.0-5+deb12u4
Debian:13gst-plugins-good1.0from 0—
Debian:14gst-plugins-good1.0before 1.28.6-11.28.6-1
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-goodbefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-good-debuginfobefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-good-debugsourcebefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-good-gtkbefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-good-gtk-debuginfobefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux_eus:10.0gstreamer1-plugins-good-qt6-debuginfobefore 0:1.24.11-1.el10_0.40:1.24.11-1.el10_0.4
Red Hat:enterprise_linux:10.2gstreamer1-plugins-goodbefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:10.2gstreamer1-plugins-good-debuginfobefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:10.2gstreamer1-plugins-good-debugsourcebefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:10.2gstreamer1-plugins-good-gtkbefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:10.2gstreamer1-plugins-good-gtk-debuginfobefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:10.2gstreamer1-plugins-good-qt6-debuginfobefore 0:1.26.7-2.el10_2.50:1.26.7-2.el10_2.5
Red Hat:enterprise_linux:8::appstreamgstreamer1-plugins-goodbefore 0:1.16.1-7.el8_10.30:1.16.1-7.el8_10.3
Red Hat:enterprise_linux:8::appstreamgstreamer1-plugins-good-debuginfobefore 0:1.16.1-7.el8_10.30:1.16.1-7.el8_10.3
Red Hat:enterprise_linux:8::appstreamgstreamer1-plugins-good-debugsourcebefore 0:1.16.1-7.el8_10.30:1.16.1-7.el8_10.3

+46

Same product

gstreamer: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-9636Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer before 1.10.2 allows
    42Plan
  • CVE-2016-9635Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer before 1.10.2 allows
    42Plan
  • CVE-2016-9634Heap-based buffer overflow in the flx_decode_delta_fli function in gst/flx/gstflxdec.c in the FLIC decoder in GStreamer before 1.10.2 allows
    42Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-12892Jun 23, 2026 · Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad: 1-byte heap out-of-bounds read in h.264 nal extension slice parser
    17Monitor
  • ← EarlierCVE-2026-5056Jul 29, 2026 · GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability
    31Monitor
  • Later →CVE-2026-73434Aug 12, 2026 · Gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
GStreamer gst-plugins-good1.28.6Vendor (CNA)
almalinux:gstreamer1-plugins-good1.26.7-2.el10_2.5 · AlmaLinux:10Package registry (OSV)
almalinux:gstreamer1-plugins-good-gtk1.26.7-2.el10_2.5 · AlmaLinux:10Package registry (OSV)
debian:gst-plugins-good1.01.22.0-5+deb12u4 · Debian:12Package registry (OSV)
debian:gst-plugins-good1.01.28.6-1 · Debian:14Package registry (OSV)
red hat:gstreamer1-plugins-good0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:gstreamer1-plugins-good-debuginfo0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:gstreamer1-plugins-good-debugsource0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:gstreamer1-plugins-good-gtk0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:gstreamer1-plugins-good-gtk-debuginfo0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:gstreamer1-plugins-good-qt-debuginfo0:1.22.12-7.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:gstreamer1-plugins-good-qt6-debuginfo0:1.26.7-2.el10_2.5 · Red Hat:enterprise_linux:10.2Package registry (OSV)
rocky linux:gstreamer1-plugins-good0:1.26.7-2.el10_2.5 · Rocky Linux:10Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-3084149 days apartGStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-191 · Integer Underflow (Wrap or Wraparound)

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (14 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records