Buffer overflow in Cefsharp
CVE-2020-16009
Inappropriate implementation in V8 in Google Chrome prior to 86.0.4240.183 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Vulnerability class: Buffer Overflow
EPSS: 0.486 (98.7th 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
- Cefsharp
- Google Chrome — versions unspecified
- Microsoft Edge
- Microsoft Edge_chromium
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 32, 33
- Opensuse Backports_sle — versions 15.0
- Opensuse Leap — versions 15.1, 15.2
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . 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: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- chrome-cve-admin@google.com (Exploit, x_refsource_MISC, Issue Tracking)
- chrome-cve-admin@google.com (vendor-advisory, Mailing List, Third Party Advisory, Broken Link, x_refsource_SUSE)
- chrome-cve-admin@google.com (vendor-advisory, Mailing List, Third Party Advisory, Broken Link, x_refsource_SUSE)
- chrome-cve-admin@google.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory, Release Notes)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory, Release Notes)
- chrome-cve-admin@google.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_DEBIAN)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-16009?
- CVE-2020-16009 is a high-severity vulnerability in Cefsharp, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-11-03.
- How severe is CVE-2020-16009?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-16009 known to be exploited?
- Yes. CVE-2020-16009 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.