CVE-2026-18649Public exploitNetwork attack vectorHinoki check available

Process termination via unbounded RTP fragment reassembly

Published Aug 6, 2026 · Updated Aug 6, 2026

Resource exhaustion in GStreamer gst-plugins-good on Red Hat Enterprise Linux 7 through 10 allows remote attackers to terminate processes. The rtph264depay and rtph265depay elements append every fragmented NAL continuation payload to a GstAdapter without limiting its reassembly size. Exploitation requires access to a pipeline accepting raw unauthenticated RTP; endless nonterminating fragments exhaust memory and terminate the receiving process.

CVSS severity7.5
High
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource exhaustion in GStreamer gst-plugins-good on Red Hat Enterprise Linux 7 through 10 allows remote attackers to terminate processes. The rtph264depay and rtph265depay elements append every fragmented NAL continuation payload to a GstAdapter without limiting its reassembly size. Exploitation requires access to a pipeline accepting raw unauthenticated RTP; endless nonterminating fragments exhaust memory and terminate the receiving process.

The record

CVE
CVE-2026-18649
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 7Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 9Affected versions are unavailable in this record.
389 Directory Server · Red Hat Enterprise Linux 8Affected versions are unavailable in this record.

Published CVSS scores

7.5CVE.orgCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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