CVE-2026-1940

🔶 medium

Summary

An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.

CVSS Score

5.1

Medium

EPSS Score

0.0

Exploit Probability

Published Date

2026-03-23

First Seen: 2026-03-24

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 19.8% of all 322,079 vulnerabilities in our database.

#258,393

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Mar 24, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

Red Hat would like to thank wooseokdotkim for reporting this issue.

SSVC data provided by CISA

Last Modified 2026-05-04

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-125

📦 Affected Products 7

Vendor	Product	Status	Affected Versions
debian	debian_linux	Affected	v11.0
debian	debian_linux	Affected	v12.0
redhat	enterprise_linux	Affected	v10.0
redhat	enterprise_linux	Affected	v7.0
redhat	enterprise_linux	Affected	v8.0
redhat	enterprise_linux	Affected	v9.0
gstreamer	gstreamer	Affected	< 1.28.1

🔗 References 5

https://access.redhat.com/security/cve/CVE-2026-1940

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2436932

Issue Tracking Vendor Advisory

https://gitlab.freedesktop.org/gstreamer/gstreamer/-...

Broken Link

https://gstreamer.freedesktop.org/security/sa-2026-0...

Vendor Advisory

https://security-tracker.debian.org/tracker/CVE-2026...

Third Party Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-42010	⚠️ high	7.1	0.2	A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully ma...	2026-05-07
CVE-2026-34000	🔶 medium	6.1	0.0	A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifical...	2026-05-05
CVE-2026-34002	🔶 medium	6.1	0.0	A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension...	2026-05-05
CVE-2026-33845	⚠️ high	7.5	0.0	A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an i...	2026-04-30
CVE-2026-3832	ℹ️ low	3.7	0.0	A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online ...	2026-04-30
CVE-2026-3833	🔶 medium	6.5	0.1	A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstra...	2026-04-30

These CVEs affect the same products