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CVE-2023-5186

22
FAUCET Score

CVE-2023-5186 is a high-severity use-after-free vulnerability in Google Chrome's password management component, affecting versions prior to 117.0.5938.132, as well as various Debian and Fedora distributions. This flaw allows a remote attacker to potentially exploit heap corruption by convincing a user to engage in specific UI interactions. With a CVSS score of 8.8, the vulnerability has a network attack vector, low attack complexity, and can lead to high impacts on confidentiality, integrity, and availability. While no public exploit code is available, the vulnerability has garnered significant community discussion and media coverage, including reports of it being exploited in the wild by spyware vendors as a zero-day.

Impacted Technologies

VendorProductVersion(s)CPE
>= 117.0.5938.132, < 117.0.5938.132CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 117.0.5938.132CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
57.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0096 is in the 59th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 116.0.1938.98
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2023-Sep/CVE-2023-5186

Chromium: CVE-2023-5186 Use after free in Passwords

Sep 12, 2023

References

chromereleases.googleblog.com / 2023/09/stable-channel-update-for-desktop_27.html
Release NotesVendor Advisory
crbug.com / 1478889
Permissions Required
lists.fedoraproject.org / archives/list/[email protected]/message/4MFWDFJSSIFKWKNOCTQCFUNZWAXUCSS4
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/CWEJYS5NC7KVFYU3OAMPKQDYN6JQGVK6
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202401-34
debian.org / security/2023/dsa-5508
Third Party Advisory