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VulnerabilityPublished

CVE-2025-47808: GStreamer · NULL Pointer Dereference

Source CVE Database V5

0

Not known to be exploited · CVSS 5.6 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
5.6Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Affects
GStreamer through 1.26.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

AI-suggested

European organizations should implement several targeted mitigation strategies: 1) Audit and inventory all applications and services using GStreamer, particularly those handling subtitle files. 2) Restrict or sanitize subtitle file inputs, especially from untrusted or external sources, to prevent processing of malformed files. 3) Employ application-level sandboxing or containerization to isolate multimedia processing components, limiting the impact of crashes. 4) Monitor for updates from the GStreamer project and apply patches promptly once available. 5) Implement robust error handling and recovery mechanisms in applications to gracefully handle crashes caused by malformed inputs. 6) Where feasible, disable subtitle parsing features if not required, reducing the attack surface. 7) Conduct penetration testing and fuzzing on multimedia components to identify similar vulnerabilities proactively. These measures go beyond generic advice by focusing on controlling input vectors, isolating vulnerable components, and preparing for graceful failure.

Description

In GStreamer through 1.26.1, the subparse plugin's tmplayer_parse_line function may dereference a NULL pointer while parsing a subtitle file, leading to a crash.

References

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