7.5

CVE-2026-85150: gst-plugins-base1.0 NULL Pointer Dereference

CVSS: 7.5v3.1HighAwaiting analysis
AliasesRHSA-2026:66460RHSA-2026:67145UBUNTU-CVE-2026-85150
Published 03-09-2026Last modified 21-09-2026
Open JSON

Vulnerability summary

CVE-2026-85150 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in gst-plugins-base1.0. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
RHSA-2026:69100

Timeline

  1. 03-09-2026
    PublishedVulnerability first disclosed.
  2. 21-09-2026
    Last modifiedVulnerability information updated.

Description

A NULL pointer dereference flaw was found in GStreamer's RTSP support library. The vulnerability occurs while parsing an Authorization or WWW-Authenticate header that uses Digest authentication. Specially crafted whitespace placement around a parameter's terminator can cause an internal length calculation to underflow, leading to a crash of the process parsing the header. On an RTSP server this can be triggered by a remote, unauthenticated attacker sending a single malformed request when the server has authentication enabled; the same flaw can also be triggered against an RTSP client by a malicious or compromised RTSP server. Successful exploitation results in a denial of service (application crash) and has no confirmed impact on confidentiality or integrity.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.01 pp

From 0.52% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat6 products
  • gstreamer1-plugins-base< 0:1.26.7-2.el10_2.2 | < 0:1.16.1-7.el8_10
  • gstreamer1-plugins-base-debuginfo< 0:1.26.7-2.el10_2.2 | < 0:1.16.1-7.el8_10
  • gstreamer1-plugins-base-debugsource< 0:1.26.7-2.el10_2.2 | < 0:1.16.1-7.el8_10
  • gstreamer1-plugins-base-devel< 0:1.26.7-2.el10_2.2 | < 0:1.16.1-7.el8_10
  • gstreamer1-plugins-base-tools< 0:1.26.7-2.el10_2.2
Debian1 product
  • gst-plugins-base1.0< 1.22.0-3+deb12u7 | All versions (No fix recorded) | < 1.28.7-1
Ubuntu1 product
  • gst-plugins-base1.0All versions (No fix recorded)

3 vendors · 8 products

References

15 links
Show all 15 references