What is the CVSS score of CVE-2017-12800?

CVE-2017-12800 has a CVSS 3.0 base score of 6.5 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.7%.

Is there a public PoC exploit available for CVE-2017-12800?

Yes, a public proof-of-concept exploit is available for CVE-2017-12800. Prioritise patching immediately. EPSS: 0.7%.

Libebml2 CVE-2017-12800

MEDIUM

NULL Pointer Dereference (CWE-476)

2017-11-10 cve@mitre.org

Null Pointer Dereference Denial Of Service Libebml2 Mkclean Mkvalidator

6.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Nov 10, 2017 - 02:29 cve.org

MEDIUM 6.5

DescriptionCVE.org

AnalysisAI

The EBML_FindNextElement function in ebmlmain.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. The EBML_FindNextElement function in ebmlmain.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file. Affected products include: Matroska Libebml2, Matroska Mkclean, Matroska Mkvalidator. Version information: through 2012.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.