CVE-2026-12891VulnerabilityPublished 18 Jul 2026Updated 12 Oct 2026

SUSE · Security update for gstreamer-plugins-bad

Affects SUSESource GCVE Database

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Authoritative record:CVE-2026-12891· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 31 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Red Hat Enterprise Linux 10gstreamer1-plugins-bad-free	Affected–	Fixed in–
Red Hat Enterprise Linux 8gstreamer1-plugins-bad-free	Affected–	Fixed in–
Red Hat Enterprise Linux 9gstreamer1-plugins-bad-free	Affected–	Fixed in–

AI-suggested

If patches are available, apply them promptly.

Description

Multiple security vulnerabilities have been identified and fixed in the gstreamer-plugins-bad component used in SUSE. These include out-of-bounds reads and writes, heap and stack buffer overflows, and improper validation issues affecting various parsers such as H.264, H.265, H.266, WebRTC, IPv4/TCP headers, and DTLS handshake processing. The vulnerabilities could lead to memory corruption or application crashes. The severity is assessed as high due to the nature of these issues. No CVSS score is provided. Patch status is not explicitly confirmed in the provided data; check the vendor advisory for current remediation guidance.

Impact

Successful exploitation of these vulnerabilities could result in memory corruption or application crashes, potentially leading to denial of service or other impacts depending on the context in which the vulnerable parsers are used. No confirmed active exploitation is reported.

Summary

The gstreamer-plugins-bad component in SUSE contains multiple security vulnerabilities including out-of-bounds memory accesses and buffer overflows in parsers for video codecs (H.264, H.265, H.266), WebRTC, network protocols (IPv4/TCP), and DTLS handshake processing. These flaws can cause memory corruption or crashes. The vulnerabilities have been identified and fixed, but explicit patch availability is not confirmed in the provided information. The issues affect the versions identified by the SUSE package names and architectures listed.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 12 Oct 2026, 22:38 UTC

Technical details

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