Security Resilience

CVE-2020-16009

Memory Safety in Opensuse Backports Sle 15.0

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
03 November 2020
Modified
24 October 2025
KEV Added
03 November 2021
Patch / advisory
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.48 99th percentile
Risk Priority 90 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2020-16009 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Opensuse Backports Sle. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

The vulnerability is an inappropriate implementation in the V8 JavaScript engine within Google Chrome versions prior to 86.0.4240.183. It is associated with CWE-787 (out-of-bounds write) and CWE-843 (type confusion) and can result in heap corruption when a victim visits a crafted HTML page. The issue received a CVSS 3.1 base score of 8.8.

A remote attacker can exploit the flaw by serving a malicious HTML page that triggers the corruption. Successful exploitation grants the attacker confidentiality, integrity, and availability impacts without requiring authentication or special privileges beyond convincing the user to visit the page.

Chrome release notes and distribution advisories direct users to upgrade to version 86.0.4240.183 or later; corresponding OpenSUSE updates were published to address the same component. Public references also include a proof-of-concept targeting V8's Turbofan JIT compiler via type confusion.

EU & UK References

Vulnerability Data

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.

CWE(s)
KEV Date Added
03 November 2021

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

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CVE-2020-15999Same product: Debian Debian Linuxboth on KEV
CVE-2023-5217Same product: Debian Debian Linuxboth on KEV
CVE-2022-4135Same product: Google Chromeboth on KEV
CVE-2023-4863Same product: Debian Debian Linuxboth on KEV
CVE-2021-21220Same product: Fedoraproject Fedoraboth on KEV
CVE-2024-4761Same product: Fedoraproject Fedoraboth on KEV
CVE-2021-30632Same product: Fedoraproject Fedoraboth on KEV
CVE-2025-5419Same product: Google Chromeboth on KEV

Affected Assets

cefsharp
cefsharp
≤ 86.0.241
google
chrome
≤ 86.0.4240.183
microsoft
edge
≤ 86.0.622.63
microsoft
edge chromium
≤ 86.0.4240.183
opensuse
backports sle
15.0
opensuse
leap
15.1, 15.2
fedoraproject
fedora
32, 33
debian
debian linux
10.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.5.2
  • V15.3.5

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

ID.RA-01 partial match
blocks

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
blocks

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

PR.PS-06 partial match
blocks

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

removes
removes
removes
removes
removes

References