Cyber Resilience

CVE-2023-3079

Memory Safety in Fedoraproject Fedora 37 … 38

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
05 June 2023
Modified
24 October 2025
KEV Added
07 June 2023
Patch / advisory
View 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 0.32 98th percentile
Risk Priority 90 floored blend · peak EPSS

Summary

CVE-2023-3079 is a high-severity Type Confusion (CWE-843) vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 2% 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.

Type confusion in the V8 JavaScript engine of Google Chrome prior to version 114.0.5735.110 constitutes the vulnerability, assigned CVE-2023-3079 with CWE-843. The flaw permits heap corruption when a victim renders a specially crafted HTML page, carrying a CVSS 3.1 score of 8.8 reflecting network attack vector, low complexity, and high impact on confidentiality, integrity, and availability.

A remote attacker can trigger the issue by persuading a user to visit a malicious web page, after which successful exploitation may allow arbitrary code execution within the renderer process. Public proof-of-concept material on PacketStorm demonstrates both the type confusion primitive and a follow-on sandbox escape chain.

Chrome stable channel updates released on 5 June 2023 upgraded V8 to a corrected version; administrators are advised to deploy 114.0.5735.110 or later, and Fedora package maintainers issued corresponding updates to affected Linux distributions.

EPSS for the CVE rose sharply from a low baseline to a peak of 0.3477 on 10 January 2025 before receding to the current value of 0.0171, indicating that exploitation interest materialized well after initial disclosure.

EU & UK References

Vulnerability Data

Type confusion in V8 in Google Chrome prior to 114.0.5735.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

CWE(s)
CWE-843
KEV Date Added
07 June 2023

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

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Affected Assets

google
chrome
≤ 114.0.5735.110
fedoraproject
fedora
37, 38
debian
debian linux
11.0, 12.0
apple
macos
all versions
linux
linux kernel
all versions
couchbase
couchbase server
7.2.0 · ≤ 7.1.5

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
  • V3.2.3
  • V15.3.5

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.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent type-confusion flaws via safe typing, static analysis, and code review while the control itself addresses many additional weaknesses.

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.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect type-confusion vulnerabilities through fuzzing and static analysis.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates type-safe design and review that can catch type-confusion flaws.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify strong typing and interface contracts that reduce type confusion.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles promote type-safe languages and memory-safety mechanisms that mitigate type confusion.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly forbid unsafe type casts and require static-analysis checks for type confusion.

References