What is CVE-2023-4863?

CVE-2023-4863 is a high-severity vulnerability in Bandisoft Honeyview, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-09-12.

How severe is CVE-2023-4863?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-4863 known to be exploited?

Yes. CVE-2023-4863 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-09-13), indicating it is being actively exploited. 64 public proof-of-concept repositories are indexed.

Buffer overflow in Bandisoft Honeyview

CVE-2023-4863

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

Vulnerability class: Buffer Overflow

EPSS: 0.997 (100.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-09-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-10-04.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Issue Tracking, Vendor Advisory)
chrome-cve-admin@google.com (Release Notes)
chrome-cve-admin@google.com (Exploit, Third Party Advisory)
chrome-cve-admin@google.com (Third Party Advisory)
chrome-cve-admin@google.com (Patch)
chrome-cve-admin@google.com (Patch, Third Party Advisory)
chrome-cve-admin@google.com (Third Party Advisory, Issue Tracking)
chrome-cve-admin@google.com (Third Party Advisory, Issue Tracking)
chrome-cve-admin@google.com (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-4863?: CVE-2023-4863 is a high-severity vulnerability in Bandisoft Honeyview, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2023-09-12.
How severe is CVE-2023-4863?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-4863 known to be exploited?: Yes. CVE-2023-4863 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-09-13), indicating it is being actively exploited. 64 public proof-of-concept repositories are indexed.