What is CVE-2024-0519?

CVE-2024-0519 is a high-severity vulnerability in Couchbase Server, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2024-01-16.

How severe is CVE-2024-0519?

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

Is CVE-2024-0519 known to be exploited?

Yes. CVE-2024-0519 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-01-17), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.

Buffer overflow in Couchbase Server

CVE-2024-0519

Out of bounds memory access in V8 in Google Chrome prior to 120.0.6099.224 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

Published 2024-01-16 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.038 (89.9th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000

Affected products

Couchbase Server
Google Chrome — versions 120.0.6099.224
Fedoraproject Fedora — versions 38, 39

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2024-01-17. 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: 2024-02-07.

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

Public proof-of-concept exploits

References

chromereleases.googleblog.com/2024/01/stable-channel-update-for-desktop_16.html (Release Notes)
crbug.com/1517354 (Permissions Required)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Broken Link)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Broken Link)
www.couchbase.com/alerts/ (Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2024-0519?: CVE-2024-0519 is a high-severity vulnerability in Couchbase Server, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2024-01-16.
How severe is CVE-2024-0519?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2024-0519 known to be exploited?: Yes. CVE-2024-0519 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-01-17), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.