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CVE-2026-18649VulnerabilityPublished Updated

Red Hat Security Advisory: gstreamer1-plugins-good security update

Affects Red Hat gstreamer1-plugins-goodSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-18649· High 7.5

Not known to be exploited · CVSS 7.5 High.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 61% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10gstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update Supportgstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 7 Extended Lifecycle Supportgstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 8gstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportgstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Ongstreamer1-plugins-goodAffected–Fixed in–

AI-suggested

Red Hat has released updated gstreamer1-plugins-good packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 10.0 Extended Update Support should apply the available security updates as described in Red Hat advisory RHSA-2026:65959. Detailed update instructions are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patches.

Description

Multiple security vulnerabilities have been identified and fixed in the gstreamer1-plugins-good package used in Red Hat Enterprise Linux 10.0 Extended Update Support. These include unbounded memory growth in RTP depayloaders (CVE-2026-18649), an unsigned integer underflow leading to out-of-bounds read/write in avidemux FUJIFILM strd parsing (CVE-2026-73433), and an out-of-bounds read in avidemux vprp video field descriptor parsing (CVE-2026-73434). Red Hat has released updates addressing these issues.

References

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