8.8

CVE-2023-5218: debian debian_linux Use After Free

Modified
AliasesDEBIAN-CVE-2023-5218ALPINE-CVE-2023-5218
Published 11-10-2023Last modified 30-04-2025

Vulnerability summary

CVE-2023-5218 is a high (CVSS 8.8) Use After Free vulnerability in debian debian_linux. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.35%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
DSA-5526-1MGASA-2023-0289OPENSUSE-SU-2023:0300-1OPENSUSE-SU-2023:0337-1OPENSUSE-SU-2023:0338-1OPENSUSE-SU-2024:13317-1

Timeline

  1. 11-10-2023
    PublishedVulnerability first disclosed.
  2. 30-04-2025
    Last modifiedVulnerability information updated.

Description

Use after free in Site Isolation in Google Chrome prior to 118.0.5993.70 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.35%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

Increase +0.05 pp

From 1.30% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine2 products
  • qt5-qtwebengine< 5.15.13-r10 | < 5.15.15-r4
  • qt6-qtwebengine< 6.6.0-r1
Debian2 products
  • chromium< 118.0.5993.70-1~deb12u1 | < 118.0.5993.70-1
  • debian_linuxEOL11.0 | 12.0
Fedoraproject1 product
Google1 product
  • chrome≥ 118.0.5993.70, < 118.0.5993.70 | < 118.0.5993.70

4 vendors · 6 products

References

10 links