CVE-2024-42333
Heap buffer over-read
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Heap buffer over-read
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
CVE-2024-42333- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-02
EUVDEUVD-2024-39879
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
EUVD-2024-39879- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jm5w-96w4-8pcq
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory...
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
GHSA-jm5w-96w4-8pcq- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-02
NVD
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
CVE-2024-42333- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-02
OSV
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
CVE-2024-42333- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2024-42333
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
DEBIAN-CVE-2024-42333- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-42333
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
- Record
UBUNTU-CVE-2024-42333- CVSS 3.1
- 2.7 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVSUSE-SU-2025:02746-1 No score
Security update for zabbix
This update for zabbix fixes the following issues:
- CVE-2024-42333: Fixed buffer over-read for broken UTF8 mail data injection. (bsc#1233834)
- CVE-2024-22117: Fixed a bug that can cause the map element to crash when new URLs are added. (bsc#1233791)
- Record
SUSE-SU-2025:02746-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zabbixDebian:12 |
All versions, plus listed versions 1:6.0.14+dfsg-11:6.0.23+dfsg-11:6.0.23+dfsg-1~bpo12+11:6.0.24+dfsg-11:6.0.25+dfsg-1 Show 24 moreShow less1:6.0.29+dfsg-11:7.0.0+dfsg-11:7.0.0+dfsg-21:7.0.0+dfsg-2~bpo12+11:7.0.1+dfsg-11:7.0.1+dfsg-1~bpo12+11:7.0.10+dfsg-11:7.0.10+dfsg-21:7.0.2+dfsg-11:7.0.2+dfsg-1~bpo12+11:7.0.22+dfsg-11:7.0.22+dfsg-1.11:7.0.22+dfsg-1~bpo13+11:7.0.22+dfsg-1~deb13u11:7.0.27+dfsg-11:7.0.29+dfsg-11:7.0.29+dfsg-21:7.0.29+dfsg-2~bpo13+11:7.0.3+dfsg-11:7.0.5+dfsg-11:7.0.5+dfsg-1~bpo12+11:7.0.6+dfsg-11:7.0.9+dfsg-11:7.0.9+dfsg-1~bpo12+1 |
None known |
zabbixDebian:13 |
before 1:7.0.5+dfsg-1 | 1:7.0.5+dfsg-1 |
zabbixDebian:14 |
before 1:7.0.5+dfsg-1 | 1:7.0.5+dfsg-1 |
zabbixDebian:11 From an advisory covering 5 CVEs |
before 1:5.0.45+dfsg-1+deb11u1, plus listed versions 1:5.0.14+dfsg-11:5.0.14+dfsg-1~bpo11+11:5.0.17+dfsg-11:5.0.17+dfsg-1~bpo11+11:5.0.44+dfsg-1+deb11u11:5.0.8+dfsg-1 |
1:5.0.45+dfsg-1+deb11u1 |
zabbixSUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 From an advisory covering 2 CVEs |
before 4.0.12-4.32.1 | 4.0.12-4.32.1 |
zabbixUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 1:2.0.6+dfsg-1ubuntu21:2.2.0+dfsg-1ubuntu11:2.2.0+dfsg-6ubuntu11:2.2.1+dfsg-1ubuntu31:2.2.2+dfsg-1ubuntu1 Show 4 moreShow less1:2.2.2+dfsg-1ubuntu1+esm11:2.2.2+dfsg-1ubuntu1+esm31:2.2.2+dfsg-1ubuntu1+esm41:2.2.2+dfsg-1ubuntu1+esm5 |
None known |
zabbixUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1:2.4.6+dfsg-11:2.4.7+dfsg-11:2.4.7+dfsg-21:2.4.7+dfsg-2ubuntu21:2.4.7+dfsg-2ubuntu2.1 Show 4 moreShow less1:2.4.7+dfsg-2ubuntu2.1+esm11:2.4.7+dfsg-2ubuntu2.1+esm21:2.4.7+dfsg-2ubuntu2.1+esm31:2.4.7+dfsg-2ubuntu2.1+esm4 |
None known |
zabbixUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:3.0.7+dfsg-31:3.0.12+dfsg-11:3.0.12+dfsg-1ubuntu0.1~esm11:3.0.12+dfsg-1ubuntu0.1~esm21:3.0.12+dfsg-1ubuntu0.1~esm31:3.0.12+dfsg-1ubuntu0.1~esm4 |
None known |
zabbixUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1:4.0.4+dfsg-1build21:4.0.4+dfsg-1build31:4.0.11+dfsg-11:4.0.14+dfsg-11:4.0.15+dfsg-1 Show 5 moreShow less1:4.0.16+dfsg-11:4.0.16+dfsg-1build11:4.0.17+dfsg-11:4.0.17+dfsg-1ubuntu0.1~esm11:4.0.17+dfsg-1ubuntu0.1~esm2 |
None known |
zabbixUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1:5.0.8+dfsg-1build11:5.0.14+dfsg-11:5.0.17+dfsg-11:5.0.17+dfsg-1ubuntu0.1~esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-42333 is a low vulnerability (CVSS 2.7) in Zabbix, published November 27, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. Fixed in zabbix 1:7.0.5+dfsg-1.