What is the CVSS score of CVE-2019-16227?

CVE-2019-16227 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.0%.

Is there a public PoC exploit available for CVE-2019-16227?

Yes, a public proof-of-concept exploit is available for CVE-2019-16227. Prioritise patching immediately. EPSS: 2.0%.

Is there a patch available for CVE-2019-16227?

Yes, a patch is available for CVE-2019-16227. Update the affected software to the latest version immediately.

Py Lmdb CVE-2019-16227

CRITICAL

Out-of-bounds Write (CWE-787)

2019-09-11 cve@mitre.org

Buffer Overflow Memory Corruption Py Lmdb

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Sep 11, 2019 - 15:15 nvd

CRITICAL 9.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 pypi packages depend on lmdb (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 0.97.

DescriptionNVD

An issue was discovered in py-lmdb 0.97. For certain values of mn_flags, mdb_cursor_set triggers a memcpy with an invalid write operation within mdb_xcursor_init1. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.

AnalysisAI

An issue was discovered in py-lmdb 0.97. Rated critical severity (CVSS 9.8), 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 Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An issue was discovered in py-lmdb 0.97. For certain values of mn_flags, mdb_cursor_set triggers a memcpy with an invalid write operation within mdb_xcursor_init1. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker. Affected products include: Py-Lmdb Project Py-Lmdb.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).