What is the CVSS score of CVE-2020-6622?

CVE-2020-6622 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.4%.

Is there a public PoC exploit available for CVE-2020-6622?

Yes, a public proof-of-concept exploit is available for CVE-2020-6622. Prioritise patching immediately. EPSS: 1.4%.

Stb Truetype H CVE-2020-6622

HIGH

Out-of-bounds Read (CWE-125)

2020-01-08 cve@mitre.org

Buffer Overflow Information Disclosure Stb Truetype H

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jan 08, 2020 - 23:15 nvd

HIGH 8.8

DescriptionNVD

stb stb_truetype.h through 1.22 has a heap-based buffer over-read in stbtt__buf_peek8.

AnalysisAI

stb stb_truetype.h through 1.22 has a heap-based buffer over-read in stbtt__buf_peek8. Rated high severity (CVSS 8.8), 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 Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. stb stb_truetype.h through 1.22 has a heap-based buffer over-read in stbtt__buf_peek8. Affected products include: Nothings Stb Truetype.H. Version information: through 1.22.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.