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NVD / CVE Program· CNA Zabbix

CVE-2022-43515: X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.2% (FIRST EPSS); higher than 69.6% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: zabbix (Debian:10) 1:4.0.4+dfsg-1+deb10u2; zabbix (Debian:11) 1:5.0.44+dfsg-1+deb11u1; zabbix (Debian:12) 1:6.0.13+dfsg-1.
  • Severity is disputed: the assigning authority (CNA) scores it 5.3, NVD 9.8.

Low priority for now. Upgrade to zabbix (Debian:10) 1:4.0.4+dfsg-1+deb10u2; zabbix (Debian:11) 1:5.0.44+dfsg-1+deb11u1; zabbix (Debian:12) 1:6.0.13+dfsg-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Zabbix Frontend provides a feature that allows admins to maintain the installation and ensure that only certain IP addresses can access it. In this way, any user will not be able to access the Zabbix Frontend while it is being maintained and possible sensitive data will be prevented from being disclosed. An attacker can bypass this protection and access the instance using IP address not listed in the defined range.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
Dec 5, 2022
Updated
Jun 17, 2026
EPSS
1.2% · 69th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · Zabbix
5.3
4.5 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-43515

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
zabbixfrontend

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • zabbix frontend4.0.0 and later · up to 4.0.44 inclusive
  • zabbix frontend5.0.0 and later · up to 5.0.29 inclusive
  • zabbix frontend6.0.0 and later · up to 6.0.9 inclusive
  • zabbix frontend6.2.0 and later · up to 6.2.4 inclusive
  • zabbix frontend5.0.30
  • zabbix frontend6.0.11
  • zabbix frontend6.2.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Zabbix). Independent of NVD's CPE analysis and usually ahead of it.

  • Zabbix Frontend

    • 4.0.0-4.0.44, 5.0.0-5.0.29, 6.0.0-6.0.9, 6.2.0-6.2.4affected
    • 5.0.30rc1 and later · before unspecifiednot affected
    • 6.0.11rc1 and later · before unspecifiednot affected
    • 6.2.5rc1 and later · before unspecifiednot affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10zabbixbefore 1:4.0.4+dfsg-1+deb10u21:4.0.4+dfsg-1+deb10u2
Debian:11zabbixbefore 1:5.0.44+dfsg-1+deb11u11:5.0.44+dfsg-1+deb11u1
Debian:12zabbixbefore 1:6.0.13+dfsg-11:6.0.13+dfsg-1
SUSE:OpenStack Cloud 9zabbixbefore 4.0.12-4.21.14.0.12-4.21.1

Same product

zabbix: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-27232Frontend arbitrary file read in oauth.authorize action
    27Monitor
  • CVE-2025-49643Frontend DoS vulnerability due to asymmetric resource consumption
    24Monitor
  • CVE-2023-30958DOM XSS in Developer mode dashboard via redirect GET parameter
    24Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2022-24918Mar 9, 2022 · Reflected XSS in item configuration window of Zabbix Frontend
    17Monitor
  • ← EarlierCVE-2022-24919Mar 9, 2022 · Reflected XSS in graph configuration window of Zabbix Frontend
    17Monitor
  • Later →CVE-2023-29454Jul 13, 2023 · Persistent XSS in the user form
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:zabbix1:6.0.13+dfsg-1 · Debian:12Package registry (OSV)
suse:zabbix4.0.12-4.21.1 · SUSE:OpenStack Cloud 9Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records