3.3

CVE-2024-42331: zabbix Use After Free

CVSS: 3.3v3.1LowModified
AliasesUBUNTU-CVE-2024-42331DEBIAN-CVE-2024-42331
Published 27-11-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-42331 is a low (CVSS 3.3) Use After Free vulnerability in zabbix. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.1% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.3/10
010
Low · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DLA-3984-1

Timeline

  1. 27-11-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

In the src/libs/zbxembed/browser.c file, the es_browser_ctor method retrieves a heap pointer from the Duktape JavaScript engine. This heap pointer is subsequently utilized by the browser_push_error method in the src/libs/zbxembed/browser_error.c file. A use-after-free bug can occur at this stage if the wd->browser heap pointer is freed by garbage collection.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

0.00 pp

From 0.26% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.26%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • zabbixAll versions (No fix recorded) | < 1:7.0.5+dfsg-1
Ubuntu1 product
  • zabbixAll versions (No fix recorded)
Zabbix1 product
  • zabbix≥ 7.0.0, ≤ 7.0.3 | ≥ 7.0.0, < 7.0.4

3 vendors · 3 products

References

5 links